c-first-steps

a C playground
Index Commits Files Refs README
commit a66c7b39959e803786af3946e3b8912e606d61eb
parent f0fa6fbd5a69595a6cef0cf1f318f87972f56d67
Author: Martin J. Klöckner <martin.cachari@gmail.com>
Date:   Sun, 20 Dec 2020 00:47:30 -0300

Reorganized files & directories;

Diffstat:
D95.11/clean.sh | 25-------------------------
D95.11/guia01/ej1.c | 39---------------------------------------
D95.11/guia01/ej2.c | 15---------------
D95.11/guia01/ej5.c | 27---------------------------
D95.11/guia01/ej6.c | 20--------------------
D95.11/guia01/ej8.c | 27---------------------------
D95.11/guia02/ex01.c | 16----------------
D95.11/guia02/ex02.c | 21---------------------
D95.11/guia02/ex03.c | 15---------------
D95.11/guia02/ex04.c | 79-------------------------------------------------------------------------------
D95.11/guia02/ex05.c | 62--------------------------------------------------------------
D95.11/guia02/ex06.c | 27---------------------------
D95.11/guia02/ex07.c | 62--------------------------------------------------------------
D95.11/guia02/ex08.c | 73-------------------------------------------------------------------------
D95.11/guia02/ex09.c | 107-------------------------------------------------------------------------------
D95.11/guia02/ex10.c | 39---------------------------------------
D95.11/guia02/ex11.c | 39---------------------------------------
D95.11/guia02/ex14.c | 11-----------
D95.11/guia02/ex16.c | 16----------------
D95.11/guia02/ex17.c | 12------------
D95.11/guia02/ex18.c | 92-------------------------------------------------------------------------------
D95.11/guia03/ex01.c | 20--------------------
D95.11/guia03/ex02.c | 19-------------------
D95.11/guia03/ex04.c | 17-----------------
D95.11/guia03/ex05.c | 14--------------
D95.11/guia03/ex06.c | 24------------------------
D95.11/guia03/ex07.c | 29-----------------------------
D95.11/guia03/ex08.c | 38--------------------------------------
D95.11/guia03/ex08_modular.c | 66------------------------------------------------------------------
D95.11/guia03/ex09_modular.c | 60------------------------------------------------------------
D95.11/guia03/ex10.c | 23-----------------------
D95.11/guia03/ex11.c | 19-------------------
D95.11/guia03/ex12.c | 19-------------------
D95.11/guia03/ex13.c | 61-------------------------------------------------------------
D95.11/guia03/ex14.c | 35-----------------------------------
D95.11/guia03/ex15.c | 21---------------------
D95.11/guia03/ex16.c | 28----------------------------
D95.11/guia03/ex17.c | 34----------------------------------
D95.11/guia03/ex18.c | 57---------------------------------------------------------
D95.11/guia03/ex20.c | 24------------------------
D95.11/guia03/ex21.c | 20--------------------
D95.11/guia03/ex22.c | 20--------------------
D95.11/guia03/ex23.c | 23-----------------------
D95.11/guia03/ex23_imp.c | 28----------------------------
D95.11/guia03/ex24.c | 27---------------------------
D95.11/guia03/ex24_imp.c | 28----------------------------
D95.11/guia03/ex25_imp.c | 53-----------------------------------------------------
D95.11/guia03/ex26.c | 58----------------------------------------------------------
D95.11/guia03/ex27.c | 27---------------------------
D95.11/guia03/ex28.c | 13-------------
D95.11/guia03/ex29.c | 23-----------------------
D95.11/guia03/ex30.c | 34----------------------------------
D95.11/guia03/ex30_std_dev.c | 45---------------------------------------------
D95.11/guia03/ex32.c | 65-----------------------------------------------------------------
D95.11/guia04/ex02.c | 15---------------
D95.11/guia05/ex01.c | 18------------------
D95.11/guia05/ex02.c | 0
D95.11/guia06/ex01.c | 20--------------------
D95.11/guia07/ex05.c | 31-------------------------------
D95.11/guia08/ex01.c | 58----------------------------------------------------------
D95.11/guia08/malloc_basics.c | 22----------------------
D95.11/guia08/text.txt | 23-----------------------
D95.11/tp01/Makefile | 18------------------
D95.11/tp01/README.md | 17-----------------
D95.11/tp01/include/arguments.h | 13-------------
D95.11/tp01/include/data.h | 4----
D95.11/tp01/include/macros.h | 10----------
D95.11/tp01/include/main.h | 10----------
D95.11/tp01/main | 0
D95.11/tp01/src/arguments.c | 35-----------------------------------
D95.11/tp01/src/data.c | 0
D95.11/tp01/src/main.c | 28----------------------------
72 files changed, 0 insertions(+), 2218 deletions(-)
diff --git a/95.11/clean.sh b/95.11/clean.sh
@@ -1,25 +0,0 @@
-#!/bin/bash
-
-# Removes every a.out from every subfolder where the 
-# script is executed;
-
-# Set the filename;
-file='a.out'
-
-# The path where 'file' is gonna be looked for;
-subfolders=./**/$file
-currentdir=./$file
-
-# First checks  if the file exist in the current directory
-# or in any sub-folder, if exist removes it from everywhere;
-if [ -e $currentdir ] || [ -e $subfolders ];
-then
-        rm -v -f ./**/"$file" 
-        rm -v -f "$file"
-        echo "everithing cleaned succesfully"
-
-# if doesn't exist then does nothing;
-else
-        echo "everything seems clean"
-        echo "there is nothing to do"
-fi
diff --git a/95.11/guia01/ej1.c b/95.11/guia01/ej1.c
@@ -1,39 +0,0 @@
-#include <stdio.h>
-
-#define DIVISA_NAME_ARS    "Pesos"
-#define DIVISA_NAME_BRL    "Reales"
-#define DIVISA_NAME_USD    "Dolares"
-#define DIVISA_NAME_EUR "Euros"
-
-#define MAX_DIVISAS    4
-
-typedef enum {
-    ARS, BRL, USD, EUR
-} divisa_t;
-
-
-int main( void ) {
-
-    divisa_t divisa_origen = ARS;
-    divisa_t divisa_final = USD;
-
-    float monto_origen, monto_final;
-
-    monto_origen = 1000;
-    
-
-
-    float divisas[MAX_DIVISAS][MAX_DIVISAS] = {
-        {1.000, 0.067, 0.012, 0.011},    //    ARS
-        {0.067, 1.000, 0.190, 0.160},    //    BRL
-        {0.012, 0.190, 1.000, 0.850},    //    USD
-        {0.011, 0.160, 0.850, 1.000}    //    EUR
-    };
-
-    monto_final = (monto_origen * divisas[divisa_origen][divisa_final]);
-    printf("%f\n", monto_final);
-
-    return 0;
-}
-
-
diff --git a/95.11/guia01/ej2.c b/95.11/guia01/ej2.c
@@ -1,15 +0,0 @@
-/*    Calculates the total resistance of a closed circuit    */
-
-#include <stdio.h>
-
-#define MAX_RESISTORS 7
-
-int main( void  ) {
-
-    int resistor[MAX_RESISTORS];
-
-
-
-
-    return 0;
-}
diff --git a/95.11/guia01/ej5.c b/95.11/guia01/ej5.c
@@ -1,27 +0,0 @@
-#include <stdio.h>
-#include <math.h>
-
-int main( void ) {
-
-    float raiz = 25;
-    float inv = 4;
-
-    printf("sqrt(%.2f) = ", raiz);
-
-    if(raiz > 0)
-        raiz = sqrt(raiz);
-    else
-        return 1;
-
-    printf("%.2f\n", raiz);
-    printf("inv(%.2f) = ", inv);
-
-    if (inv != 0)
-        inv = 1/inv;
-    else
-        return 1;
-
-    printf("%.2f\n", inv);
-
-    return 0;
-}
diff --git a/95.11/guia01/ej6.c b/95.11/guia01/ej6.c
@@ -1,20 +0,0 @@
-#include <stdio.h>
-#include <math.h>
-
-
-int main( void ) {
-
-    int a, b, c;
-    float x1, x2;
-    
-    a =  1;
-    b = -12;
-    c =  36;
-
-    x1 = ((-b) + sqrtf( (b*b)-(4*a*c) )) / (2*a);
-    x2 = ((-b) - sqrtf( (b*b)-(4*a*c) )) / (2*a);
-
-    printf("x1 = % .2f\nx2 = % .2f\n", x1, x2);
-
-    return 0;
-}
diff --git a/95.11/guia01/ej8.c b/95.11/guia01/ej8.c
@@ -1,27 +0,0 @@
-/*    Calculates the factorial of a given number.    */
-
-#include <stdio.h>
-
-#define ERR_MSG_NEG "ERR: The entered number is negative!"
-
-int main(void) {
-    
-    int fact, i, res;
-
-    printf("Enter a number: ");
-    if(scanf("%i", &fact) == EOF)
-        return 1;        
-
-    if(fact < 0) {
-        printf(ERR_MSG_NEG"\n");
-        return 1;
-    }
-
-    res = 1;
-    for(i = 1; i <= fact; i++) {
-        res *= i;
-    }
-
-    printf("%d! = %d\n", fact, res);
-    return 0;
-}
diff --git a/95.11/guia02/ex01.c b/95.11/guia02/ex01.c
@@ -1,16 +0,0 @@
-#include <stdio.h>
-
-typedef enum {
-        FALSE,
-        TRUE
-} bool_t; 
-
-int main(void)
-{
-    bool_t isworking = TRUE;
-    printf("%s\n", isworking ? "TRUE" : "FALSE");
-
-    return 0;
-}
-
-
diff --git a/95.11/guia02/ex02.c b/95.11/guia02/ex02.c
@@ -1,21 +0,0 @@
-#include <stdio.h>
-
-typedef enum {
-        ERROR,
-        OK
-} status_t; 
-
-int main(void)
-{
-
-    status_t isworking = OK;
-
-    if (isworking == 1)
-        printf("OK\n");
-    else
-        printf("ERROR\n");
-
-    return 0;
-}
-
-
diff --git a/95.11/guia02/ex03.c b/95.11/guia02/ex03.c
@@ -1,15 +0,0 @@
-#include <stdio.h>
-
-typedef enum {
-    LUN, MAR, MIE, JUE, VIE, SAB, DOM
-} dia_t;
-
-int main(void)
-{
-    dia_t dia = VIE;
-
-    printf("%d\n", dia);
-    
-
-    return 0;
-}
diff --git a/95.11/guia02/ex04.c b/95.11/guia02/ex04.c
@@ -1,79 +0,0 @@
-/*    Ejercicio 4 - Guia 2, Algoritmos y Programacion I - FIUBA    */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_INP_LEN 10
-
-typedef enum {
-    FAHRENHEIT,
-    CELSIUS
-} escala_t;
-
-typedef float dato_t;    
-                    
-dato_t ftoc(dato_t fahrenheit)
-{
-    return (((fahrenheit - 32) *5 ) / 9);
-}
-
-dato_t ctof(dato_t celsius)
-{
-    return (((celsius * 9) / 5) + 32);
-}
-
-void title(int i)
-{
-    printf(
-        "---------------------------------------\n"
-        "---------------------------------------\n"
-        "--- %s TO %s CONVERTER ---\n"
-        "---------------------------------------\n"
-        "---      to exit press Ctrl+D      ----\n"
-        "---------------------------------------\n"
-        "---------------------------------------\n",
-        i ? "CELSIUS" : "FAHRENHEIT",
-        i ? "FAHRENHEIT" : "CELSIUS"
-    );
-}
-
-void cursor()
-{
-    printf(">> ");
-}
-
-
-
-int main(void)
-{
-    char buffer[MAX_INP_LEN];
-    escala_t c;
-    dato_t i, res;
-    printf("0 - FAHRENHEIT TO CELSIUS\n");
-    printf("1 - CELSIUS TO FAHRENHEIT\n");
-    cursor();
-    c = getchar() - '0';
-    if (c == FAHRENHEIT) {
-        title(FAHRENHEIT);
-        while (fgets(buffer, MAX_INP_LEN, stdin) != NULL) {
-            i = atoi(buffer);
-            res = ftoc(i);
-            printf("%.0f°F = %.2f°C\n", i, res);
-            cursor();
-        }
-    } else if (c == CELSIUS) {
-        title(CELSIUS);
-        while (fgets(buffer, MAX_INP_LEN, stdin) != NULL) {
-            i = atoi(buffer);
-            res = ctof(i);
-            printf("%.0f°C = %.2f°F\n", i, res);
-            cursor();
-        }
-    }
-    printf("\n");
-    return 0;
-}
-
-
-
diff --git a/95.11/guia02/ex05.c b/95.11/guia02/ex05.c
@@ -1,62 +0,0 @@
-#include <stdio.h>
-
-typedef enum {
-    JAN, FEB, MAR, APR, MAY, JUN, JUL, AGO, SEP, OCT, NOV, DEC
-} mes_t;
-
-#define JANUARY        "ENERO"
-#define FEBRUARY    "FEBRERO"
-#define MARCH         "MARZO"
-#define APRIL        "ABRIL"
-#define MAYO        "MAYO"
-#define JUNE        "JUNIO"
-#define JULY        "JULIO"
-#define AUGUST        "AGOSTO"
-#define SEPTEMBER    "SEPTIEMBRE"
-#define OCTOBER        "OCTUBRE"
-#define NOVEMBER    "NOVIEMBRE"
-#define DECEMBER    "DICIEMBRE"
-
-int main(void) {
-    mes_t mes = NOV;
-    switch(mes)
-    {
-        case JAN:
-            printf(JANUARY"\n");
-            break;
-        case FEB:
-            printf(FEBRUARY"\n");
-            break;
-        case MAR:
-            printf(MARCH"\n");
-            break;
-        case APR:
-            printf(APRIL"\n");
-            break;
-        case MAY:
-            printf(MAYO"\n");
-            break;
-        case JUN:
-            printf(JUNE"\n");
-            break;
-        case JUL:
-            printf(JULY"\n");
-            break;
-        case AGO:
-            printf(AUGUST"\n");
-            break;
-        case SEP:
-            printf(SEPTEMBER"\n");
-            break;
-        case OCT:
-            printf(OCTOBER"\n");
-            break;
-        case NOV:
-            printf(NOVEMBER"\n");
-            break;
-        case DEC:
-            printf(DECEMBER"\n");
-            break;
-    }    
-    return 0;
-}
diff --git a/95.11/guia02/ex06.c b/95.11/guia02/ex06.c
@@ -1,27 +0,0 @@
-#include <stdio.h>
-#include <ctype.h>
-
-int main(void)
-{
-    int alpha, nonalpha, num;
-    int c;
-    
-    alpha = nonalpha = num = 0;
-
-    while((c = getchar()) != EOF ) {
-        if(isalpha(c))
-            alpha++;
-        else if(isdigit(c))
-            num++;
-        else if(!isalnum(c))
-            nonalpha++;
-    }
-    printf(
-        "Alphanumerics: %d\n"
-        "NonAlphanumerics: %d\n"
-        "Digits: %d\n",
-        alpha, nonalpha, num
-    );
-
-    return 0;
-}
diff --git a/95.11/guia02/ex07.c b/95.11/guia02/ex07.c
@@ -1,62 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <ctype.h>
-
-#define MAX_LEN 5    // max digits of the entered degree;
-#define ERR_MSG_LEN "El angulo ingresado contiene demasiados digitos"
-
-typedef enum {
-    AGUDO, OBTUSO, RECTO
-} angulo_t;
-
-
-void clean(char *buffer)
-{
-    for(size_t i = 0; i < MAX_LEN; i++)
-        buffer[i] = '\0';
-}
-
-
-int main(void) {
-    
-    char buffer[MAX_LEN];
-    clean(buffer);
-    int c, d, e, i;
-    i = 0;        
-    while(((c = getchar()) != EOF) && c != '\n') {
-        if(i < MAX_LEN) {
-            buffer[i] = c;
-            i++;
-        } else if (i >= MAX_LEN) {
-            fprintf(stderr, ERR_MSG_LEN"\n");
-            return 1;
-        }
-    }
-    d = atoi(buffer);
-
-    if (d < 90)
-        e = AGUDO;
-    else if (d == 90)
-        e = RECTO;
-    else if (d > 90)
-        e = OBTUSO;
-
-
-    switch (e)
-    {
-        case AGUDO:
-            printf("El angulo es AGUDO\n");
-            break;
-        case RECTO:
-            printf("El angulo es RECTO\n");
-            break;
-        case OBTUSO:
-            printf("El angulo es OBTUSO\n");
-            break;
-    }
-    return 0;
-}
-
-
-
-
diff --git a/95.11/guia02/ex08.c b/95.11/guia02/ex08.c
@@ -1,73 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <ctype.h>
-
-#define MAX_LEN 5    // max digits of the entered degree;
-#define ERR_MSG_LEN "El angulo ingresado contiene demasiados digitos"
-
-#define FST_YR 48
-#define SND_YR 95
-#define TRD_YR 143
-
-
-typedef enum {
-    FIRST, SECOND, THIRD, FOURTH
-} year_t;
-
-
-void clean(char *buffer)
-{
-    for(size_t i = 0; i < MAX_LEN; i++)
-        buffer[i] = '\0';
-}
-
-
-int main(void) {
-    
-    char buffer[MAX_LEN];
-    clean(buffer);
-    int c, d, i;
-    year_t e;
-    i = 0;        
-    while(((c = getchar()) != EOF) && c != '\n') {
-        if(i < MAX_LEN) {
-            buffer[i] = c;
-            i++;
-        } else if (i >= MAX_LEN) {
-            fprintf(stderr, ERR_MSG_LEN"\n");
-            return 1;
-        }
-    }
-    d = atoi(buffer);
-
-    if (d <= FST_YR) 
-        e = FIRST;
-    else if ((d > FST_YR) && (d <= SND_YR))
-        e = SECOND;
-    else if ((d > SND_YR) && d <= (TRD_YR))
-        e = THIRD;
-    else if (d > TRD_YR) 
-        e = FOURTH;
-
-
-    switch (e)
-    {
-        case FIRST:
-            printf("Primer año\n");
-            break;
-        case SECOND:
-            printf("Segundo año\n");
-            break;
-        case THIRD:
-            printf("Tercer año\n");
-            break;
-        case FOURTH:
-            printf("Curto año o superior\n");
-            break;
-    }
-    return 0;
-}
-
-
-
-
diff --git a/95.11/guia02/ex09.c b/95.11/guia02/ex09.c
@@ -1,107 +0,0 @@
-/*    Reads a number of credits from stdin and prints the corresponding
-    grade of the Engineer in stdout*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <ctype.h>
-
-#define MAX_LEN 5    // max digits of the entered degree;
-#define ERR_MSG_LEN "El numero ingresado contiene demasiados digitos"
-#define ERR_NEG_MSG "El numero ingresado no es valido"
-
-#define FST_YR 52
-#define SND_YR 104
-#define TRD_YR 156
-
-#define FST_MSG "Primer año"
-#define SND_MSG "Segundo año"
-#define TRD_MSG "Tercer año"
-#define FTH_MSG "Cuarto año"
-
-typedef enum {
-    FIRST, SECOND, THIRD, FOURTH
-} year_t;
-
-typedef enum {
-    OK, ERROR
-} status_t;
-
-status_t clean(char *buffer)
-{
-    if(buffer == NULL)
-        return ERROR;
-
-    for(size_t i = 0; i < MAX_LEN; i++)
-        buffer[i] = '\0';
-    
-    return OK;
-}
-
-
-int main(void) {
-    
-    /*    Defining variables    */
-    char buffer[MAX_LEN]; 
-    int c, credits, i;
-    year_t year;
-    i = 0;        
-    
-    /*    Cleaning buffer in case it contains a random number    */ 
-    if(clean(buffer) == ERROR)
-        return ERROR;
-    
-    /*    Reading one char from stdin and storing it on a buffer until EOF    */
-    while(((c = getchar()) != EOF) && c != '\n') {
-        if(i < MAX_LEN) {
-            buffer[i] = c;
-            i++;
-        } else if (i >= MAX_LEN) {
-            fprintf(stderr, ERR_MSG_LEN"\n");
-            return 1;
-        }
-    }
-    
-    /*    Converting the first portion of buffer to int with atoi() 
-        and cleaning the buffer    */
-    credits = atoi(buffer);
-    if(clean(buffer) == ERROR)
-        return ERROR;
-
-    /*    Checks if credits is a valid number    */
-    if(credits < 0) {
-        fprintf(stderr, ERR_NEG_MSG"\n");
-        return 1;
-    }
-
-    /*    Evaluating the numbers of credits to match the current year     */
-    if (credits <= FST_YR) 
-        year = FIRST;
-    else if ((credits > FST_YR) && (credits <= SND_YR))
-        year = SECOND;
-    else if ((credits > SND_YR) && (credits <= TRD_YR))
-        year = THIRD;
-    else if (credits > TRD_YR) 
-        year = FOURTH;
-
-    /*    Printing to stdout the corresponding year    */
-    switch (year)
-    {
-        case FIRST:
-            printf(FST_MSG"\n");
-            break;
-        case SECOND:
-            printf(SND_MSG"\n");
-            break;
-        case THIRD:
-            printf(TRD_MSG"\n");
-            break;
-        case FOURTH:
-            printf(FTH_MSG"\n");
-            break;
-    }
-    return OK;
-}
-
-
-
-
diff --git a/95.11/guia02/ex10.c b/95.11/guia02/ex10.c
@@ -1,39 +0,0 @@
-#include <stdio.h>
-
-
-#define TM "3M Corporation"
-#define MAXWELL "Maxwell Corporation"
-#define SONY "Sony Corporation"
-#define VERBATIM "Verbatim Corporation"
-
-typedef enum {
-    TM_CORPORATION,
-    MAXWELL_CORPORATION,
-    SONY_CORPORATION,
-    VERBATIM_CORPORATION
-} manufacturer_t;
-
-
-int main(void) {
-    manufacturer_t c;
-    printf("Introduzca un Id. de fabricante: ");
-    c = (getchar() - '0');
-    switch(c) {
-        case TM_CORPORATION:
-            printf(TM"\n");
-            break;
-        case MAXWELL_CORPORATION:
-            printf(MAXWELL"\n");
-            break;
-        case SONY_CORPORATION:
-            printf(SONY"\n");
-            break;
-        case VERBATIM_CORPORATION:
-            printf(VERBATIM"\n");
-            break;
-        default:
-            printf("El numero ingresado no es valido\n");
-            return 1;
-    }
-    return 0;
-}
diff --git a/95.11/guia02/ex11.c b/95.11/guia02/ex11.c
@@ -1,39 +0,0 @@
-#include <stdio.h>
-
-
-#define TM            "3M Corporation"
-#define MAXWELL        "Maxwell Corporation"
-#define SONY        "Sony Corporation"
-#define VERBATIM     "Verbatim Corporation"
-
-typedef enum {
-    TM_CORPORATION            = '3',
-    MAXWELL_CORPORATION        = 'M',
-    SONY_CORPORATION        = 'S',    
-    VERBATIM_CORPORATION    = 'V'
-} manufacturer_t;
-
-
-int main(void) {
-    manufacturer_t c;
-    printf("Introduzca un Id. de fabricante: ");
-    c = getchar();
-    switch(c) {
-        case TM_CORPORATION:
-            printf(TM"\n");
-            break;
-        case MAXWELL_CORPORATION:
-            printf(MAXWELL"\n");
-            break;
-        case SONY_CORPORATION:
-            printf(SONY"\n");
-            break;
-        case VERBATIM_CORPORATION:
-            printf(VERBATIM"\n");
-            break;
-        default:
-            printf("El numero ingresado no es valido\n");
-            return 1;
-    }
-    return 0;
-}
diff --git a/95.11/guia02/ex14.c b/95.11/guia02/ex14.c
@@ -1,11 +0,0 @@
-#include <stdio.h>
-
-typedef enum { 
-    1200, 2400, 4800, 9600 
-} baudrate_t;
-
-int main(void) 
-{
-    baudrate_t baudrate = 9600;
-    return 0;
-}    
diff --git a/95.11/guia02/ex16.c b/95.11/guia02/ex16.c
@@ -1,16 +0,0 @@
-#include <stdio.h>
-
-#define TRUE 0
-
-#ifdef TRUE
-    #undef TRUE
-    #define TRUE 1
-#endif
-
-int main(void) 
-{
-    printf("TRUE = %d\n", TRUE);
-    return 0;
-}
-
-
diff --git a/95.11/guia02/ex17.c b/95.11/guia02/ex17.c
@@ -1,12 +0,0 @@
-#include <stdio.h>
-
-int main(void)
-{
-    #ifdef DEBUG
-        printf("DEBUGGING\n");
-    #endif
-    
-    printf("Hello world!\n");
-
-    return 0;
-}
diff --git a/95.11/guia02/ex18.c b/95.11/guia02/ex18.c
@@ -1,92 +0,0 @@
-#include <stdio.h>
-
-#define LANGUAGE GER    //    Define language in which month are displyed ESP,GER,ENG
-
-#if LANGUAGE == ESP
-    #define JANUARY        "ENERO"
-    #define FEBRUARY    "FEBRERO"
-    #define MARCH         "MARZO"
-    #define APRIL        "ABRIL"
-    #define MAYO        "MAYO"
-    #define JUNE        "JUNIO"
-    #define JULY        "JULIO"
-    #define AUGUST        "AGOSTO"
-    #define SEPTEMBER    "SEPTIEMBRE"
-    #define OCTOBER        "OCTUBRE"
-    #define NOVEMBER    "NOVIEMBRE"
-    #define DECEMBER    "DICIEMBRE"
-#elif LANGUAGE == GER 
-    #define JANUARY        "JANUAR"
-    #define FEBRUARY    "FEBRUAR"
-    #define MARCH         "MÄRZ"
-    #define APRIL        "APRIL"
-    #define MAYO        "MAI"
-    #define JUNE        "JUNI"
-    #define JULY        "JULI"
-    #define AUGUST        "AUGUST"
-    #define SEPTEMBER    "SEPTEMBER"
-    #define OCTOBER        "OKTOBER"
-    #define NOVEMBER    "NOVEMBER"
-    #define DECEMBER    "DEZEMBER"
-#else 
-    #define JANUARY        "JANUARY"
-    #define FEBRUARY    "FEBRUARY"
-    #define MARCH         "MARCH"
-    #define APRIL        "ABPRIL"
-    #define MAYO        "MAY"
-    #define JUNE        "JUNE"
-    #define JULY        "JULY"
-    #define AUGUST        "AUGUST"
-    #define SEPTEMBER    "SEPTEMBER"
-    #define OCTOBER        "OCTOBER"
-    #define NOVEMBER    "NOVEMBER"
-    #define DECEMBER    "DECEMBER"
-#endif
-
-typedef enum {
-    JAN, FEB, MAR, APR, MAY, JUN, JUL, AGO, SEP, OCT, NOV, DEC
-} mes_t;
-
-int main(void) {
-    mes_t mes = MAR;
-    switch(mes)
-    {
-        case JAN:
-            printf(JANUARY"\n");
-            break;
-        case FEB:
-            printf(FEBRUARY"\n");
-            break;
-        case MAR:
-            printf(MARCH"\n");
-            break;
-        case APR:
-            printf(APRIL"\n");
-            break;
-        case MAY:
-            printf(MAYO"\n");
-            break;
-        case JUN:
-            printf(JUNE"\n");
-            break;
-        case JUL:
-            printf(JULY"\n");
-            break;
-        case AGO:
-            printf(AUGUST"\n");
-            break;
-        case SEP:
-            printf(SEPTEMBER"\n");
-            break;
-        case OCT:
-            printf(OCTOBER"\n");
-            break;
-        case NOV:
-            printf(NOVEMBER"\n");
-            break;
-        case DEC:
-            printf(DECEMBER"\n");
-            break;
-    }    
-    return 0;
-}
diff --git a/95.11/guia03/ex01.c b/95.11/guia03/ex01.c
@@ -1,20 +0,0 @@
-#include <stdio.h>
-
-#define MAX_LEN 100
-
-
-int main(void) {
-
-    char s[MAX_LEN];
-
-    printf("> ");
-    scanf("%s", s);
-    puts(s);
-
-    printf("> ");
-    // gets(s); removed from std C11 because it's very unsecure
-    fgets(s, MAX_LEN, stdin);
-    puts(s);
-
-    return 0;
-}
diff --git a/95.11/guia03/ex02.c b/95.11/guia03/ex02.c
@@ -1,19 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-
-#define MAX_LEN 100
-#define ERR_EMPTY_MSG "no chars have been readed"
-
-int main(void) {
-    
-    char s[MAX_LEN];
-    if(fgets(s, MAX_LEN, stdin) == NULL) {
-        fprintf(stderr, ERR_EMPTY_MSG"\n");
-        return 1;
-    } else if(strcmp(s, "") == 0) {
-        fprintf(stderr, ERR_EMPTY_MSG"\n");
-        return 1;
-    }
-    printf("%s", s);
-    return 0;
-}
diff --git a/95.11/guia03/ex04.c b/95.11/guia03/ex04.c
@@ -1,17 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-
-int main(void) {
-
-    char s[] = "Hello world!\n";
-    char aux;
-    int n;
-
-    for(n = strlen(s); n >= 0; n--) {
-        aux = s[n];
-        if(aux != '\n')
-            putchar(aux);
-    }
-    putchar('\n');
-    return 0;
-}
diff --git a/95.11/guia03/ex05.c b/95.11/guia03/ex05.c
@@ -1,14 +0,0 @@
-/*    Calculates the length of a string and prints it on stdout    */
-
-#include <stdio.h>
-
-int main(void) {
-
-    char s[] = "Hello world!\n";
-    int i;    
-    for(i = 0; s[i] != '\0'; i++) {
-    }
-    printf("%d\n", i);
-    
-    return 0;
-}
diff --git a/95.11/guia03/ex06.c b/95.11/guia03/ex06.c
@@ -1,24 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-
-
-
-int main(void) {
-
-    char origen[] = "Hello world!\n";
-    size_t i, len;
-    len = strlen(origen);    
-    char destino[len];
-
-    for(i = 0; i <= len; i++) {
-        destino[i] = origen[i];
-        if(i == len)
-            destino[i + 1] = '\0';
-    }
-
-    printf("%s", origen);
-    printf("%s", destino);
-
-
-    return 0;
-}
diff --git a/95.11/guia03/ex07.c b/95.11/guia03/ex07.c
@@ -1,29 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-
-
-int main(void) {
-
-    char s1[] = "Hello world!";
-    char s2[] = "Hola mundo!";
-
-
-    int i, s1_len, s2_len, cat_len;
-    s1_len = strlen(s1);
-    s2_len = strlen(s2);
-
-    cat_len = ((s1_len + s2_len) + 1); //    One more for the '\0' byte;
-    char cat[cat_len];
-
-    for(i = 0; i <= cat_len; i++) {
-        if (i < s1_len) {
-            cat[i] = s1[i];
-        } else if (i >= s1_len) {
-            cat[i] = s2[i - s1_len];
-        } else if (i == cat_len) {
-            cat[i + 1] = '\0';
-        }
-    }
-    printf("%s\n", cat);
-    return 0;
-}
diff --git a/95.11/guia03/ex08.c b/95.11/guia03/ex08.c
@@ -1,38 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-
-size_t str_len(const char *str) {
-    if(str == NULL)
-        return 1;
-
-    size_t i;
-    for(i = 0; str[i] != '\0'; i++)
-        ; 
-
-    return i;
-}
-
-int main(void) {
-
-    char s1[] = "ABC";
-    char s2[] = "ABC";
-
-    size_t s1_len, s2_len;
-    int i, j, cmp;
-
-    s1_len = str_len(s1);
-    s2_len = str_len(s2);
-    
-    j = (s1_len > s2_len) ? s1_len : s2_len;
-
-    for(i = 0, cmp = 0; i < j; i++) {
-        if(s1[i] < s2[i]) {
-            cmp -= (s2[i] - s1[i]);
-        } else 
-            if (s1[i] > s2[i]) {
-                cmp += (s1[i] - s2[i]);
-            }
-    }    
-    printf("%d\n", cmp);
-    return 0;
-}
diff --git a/95.11/guia03/ex08_modular.c b/95.11/guia03/ex08_modular.c
@@ -1,66 +0,0 @@
-/*    Makes a lexicographical comparison between two strings    */
-/*    similar to strcmp() function from <string.h>        */
-
-#include <stdio.h>
-
-/*    This function calculates the length of given string
-    and returns the lenghth by its name as a size_t        */
-size_t str_len(const char *str) 
-{
-    if(str == NULL)
-        return 1;
-    size_t i;
-    for(i = 0; str[i] != '\0'; i++) 
-        ;
-
-    return i;
-}
-
-/*    This function is equivalent to strcmp() function from    
-    <string.h> library                    */
-int str_cmp(const char *str1, const char *str2) 
-{ 
-//    In case one of the given strings is NULL returns 1; 
-    if(str1 == NULL || str2 == NULL)
-        return 1;
-
-
-    char aux1, aux2;
-    int i, j, cmp, str1_len, str2_len;
-    str1_len = str_len(str1);
-    str2_len = str_len(str2);
-
-//    Assigns the length of the longer string to j;
-    j = (str1_len > str2_len) ? str1_len : str2_len; 
-
-//    The for loop itinirate until the longest str ENDs
-    for(i = 0, cmp = 0; i < j; i++) {
-
-        aux1 = str1[i];
-        aux2 = str2[i];
-
-//        This statement assigns to cmp the difference between
-//        the two coresponding chars of str1 and str2
-        if(aux1 < aux2) {
-            cmp -= (aux2 - aux1);
-        } else if (aux1 > aux2) {
-                cmp += (aux1 - aux2);
-            }
-
-    }
-    return cmp;
-}
-
-    
-int main(void) {
-
-    char s1[] = "AB";
-    char s2[] = "ABC";
-
-    int i, j;
-    i = str_cmp(s1, s2);
-
-    printf("%d\n", i);
-    
-    return 0;
-}
diff --git a/95.11/guia03/ex09_modular.c b/95.11/guia03/ex09_modular.c
@@ -1,60 +0,0 @@
-/*  Makes a lexicographical comparison between the first n    */
-/*    numbers of two given strings                            */
-/*    similar to strncmp() function from <string.h>            */
-
-#include <stdio.h>
-
-/*    This function calculates the length of given string
-    and returns it by its name, equivalent to strlen()        
-    function from <string.h> library                        */
-size_t str_len(const char *str)
-{
-    if(str == NULL)
-        return 1;
-
-    size_t i;
-    for(i = 0; str[i] != '\0'; i++) 
-        ;
-
-    return i;
-}
-
-/*  This function is equivalent to strncmp() function from   
-    <string.h> library                                      */
-int str_cmp(const char *str1, const char *str2, size_t n)
-{ 
-    if(str1 == NULL || str2 == NULL)
-        return 1;
-
-    char aux1, aux2;
-    int i, j, cmp, str1_len, str2_len;
-    str1_len = str_len(str1);
-    str2_len = str_len(str2);
-    
-    if(n > str1_len || n > str2_len)
-        return 1;
-
-    for(i = 0, cmp = 0; i <= n; i++) {
-        aux1 = str1[i];
-        aux2 = str2[i];
-        if(aux1 < aux2) {
-            cmp -= (aux2 - aux1);
-        } else if (aux1 > aux2) {
-                cmp += (aux1 - aux2);
-            }
-    }
-    return cmp;
-}
-
-    
-int main(void) {
-
-    char s1[] = "AB ";
-    char s2[] = "ABC";
-
-    int i;
-    i = str_cmp(s1, s2, 4);
-
-    printf("%d\n", i);
-    return 0;
-}
diff --git a/95.11/guia03/ex10.c b/95.11/guia03/ex10.c
@@ -1,23 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-
-
-
-int main(void) {
-
-    char src[] = "Hello world!\n";
-    size_t i, n;
-
-    n = 12;
-    char cpy[n];
-
-    for(i = 0; i <= n; i++) {
-        cpy[i] = src[i];
-    }
-
-    printf("%s", src);
-    printf("%s", cpy);
-
-
-    return 0;
-}
diff --git a/95.11/guia03/ex11.c b/95.11/guia03/ex11.c
@@ -1,19 +0,0 @@
-#include <stdio.h>
-#include <ctype.h>
-
-int main(void) 
-{
-    char str[] = "hello world";
-    int i;
-    char aux;
-
-    for(i = 0; (aux = str[i]) != '\0'; i++)
-        if(islower(aux))
-            str[i] = toupper(aux);
-
-    printf("%s\n", str);
-    return 0;
-}
-
-
-
diff --git a/95.11/guia03/ex12.c b/95.11/guia03/ex12.c
@@ -1,19 +0,0 @@
-#include <stdio.h>
-#include <ctype.h>
-
-int main(void) 
-{
-    char str[] = "HELLO WORLD";
-    int i;
-    char aux;
-
-    for(i = 0; (aux = str[i]) != '\0'; i++)
-        if(isupper(aux))
-            str[i] = tolower(aux);
-
-    printf("%s\n", str);
-    return 0;
-}
-
-
-
diff --git a/95.11/guia03/ex13.c b/95.11/guia03/ex13.c
@@ -1,61 +0,0 @@
-//    Reads a string from stdin and converts it to uppercase or lowercase 
-//    depending on an option readed from stdin
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-
-#define MSG_STR_PROMPT    "Introduzca una cadena:"
-#define MSG_FMT_PROMPT    "Convertir a: (0 - MAYUSCULAS / 1 - MINUSCULAS)"
-#define MSG_FMT_ERR        "Err: Formato incorrecto"
-
-#define MAX_STR_LEN 100
-
-typedef enum {
-    FMT_MAYUSCULAS, FMT_MINUSCULAS
-} format_t;
-
-
-int main ( void ) {
-
-
-    char buffer[MAX_STR_LEN];
-    char str[MAX_STR_LEN];
-    format_t format;
-
-
-    printf(MSG_STR_PROMPT"\n>> ");
-    fgets(buffer, MAX_STR_LEN, stdin);
-    strcpy(str, buffer);
-
-    printf(MSG_FMT_PROMPT"\n>> ");
-    format = (getchar () - '0');
-    if((format < 0) || (format > 1)) {
-        fprintf(stderr, MSG_FMT_ERR"\n");
-        return 1;
-    }
-
-    printf("La cadena ingresada: %sOpcion elegida: %d\n", str, format);            
-
-    int i, aux;
-    switch(format)
-    {
-        case FMT_MAYUSCULAS: 
-            for(i = 0; (aux = str[i]) != '\n'; i++) {
-                if(islower(aux))
-                    str[i] = toupper(aux);
-            }
-            break;
-        case FMT_MINUSCULAS:
-            for(i = 0; (aux = str[i]) != '\n'; i++) {
-                if(isupper(aux))
-                    str[i] = tolower(aux);
-            }
-            break;
-    }
-
-    printf("%s", str);
-    return 0;
-}
diff --git a/95.11/guia03/ex14.c b/95.11/guia03/ex14.c
@@ -1,35 +0,0 @@
-#include <stdio.h>
-
-
-typedef enum {
-    OK, ERROR
-} status_t; 
-
-
-size_t rechar(char *str, char old, char new);
-
-
-int main( void ) {
-
-    char str[] = "Hello world!";
-
-    rechar(str, 'o', 'e');
-
-    printf("%s\n", str);
-    return OK;
-}
-
-
-
-size_t rechar(char *str, char old, char new) {
-    if(str == NULL)
-        return ERROR;
-
-    int i;
-    for(i = 0; str[i] != '\0'; i++) {
-        if(str[i] == old) {
-            str[i] = new;
-        }
-    }
-    return OK;
-}
diff --git a/95.11/guia03/ex15.c b/95.11/guia03/ex15.c
@@ -1,21 +0,0 @@
-#include <stdio.h>
-
-#define MAX_LEN 100
-
-int main(void) {
-
-    int i, j;
-    char str[MAX_LEN];
-
-    fgets(str, MAX_LEN, stdin);
-
-    j = 0;
-    while(str[j] == ' ')
-        j++;
-
-    for(i = 0; str[i] != '\0'; i++) {
-        str[i] = str[i + j];
-    }
-    puts(str);
-    return 0;
-}
diff --git a/95.11/guia03/ex16.c b/95.11/guia03/ex16.c
@@ -1,28 +0,0 @@
-//    Reads a string from stdin and if it ends in blank
-//    spaces it erase them and moves the '\n', '\0' chars
-//    it performs a "right trim"
-
-
-#include <stdio.h>
-
-#define MAX_LEN 100
-
-
-int main ( void ) {
-
-    int i, j, k;
-    char str[MAX_LEN];
-
-    if(fgets(str, MAX_LEN, stdin) == NULL)
-        return 1;
-
-    for(i = 0; str[i] != '\0'; i++) 
-        if(str[i + 1] == '\n') 
-            for(j = 0; str[i - j] == ' '; j++)
-                ;
-            
-    str[(i - j) - 1] = str[i - 1];
-    str[(i - j)] = '\0';
-
-    return 0;
-}
diff --git a/95.11/guia03/ex17.c b/95.11/guia03/ex17.c
@@ -1,34 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-
-#define MAX_LEN 100
-
-
-int main ( void ) {
-
-    int i, j;
-    
-    char s1[MAX_LEN];
-    char s2[MAX_LEN];
-    
-    if(fgets(s1, MAX_LEN, stdin) == NULL)
-        return 1;
-
-    if(fgets(s2, MAX_LEN, stdin) == NULL)
-        return 1;
-
-    if(strlen(s2) > strlen(s1))
-        return 1;
-
-    for(i = 0; s1[i] != '\0'; i++)
-        if(s1[i] == s2[0])
-            for(j = 0; (s2[j] != '\0'); j++)
-                if(s1[i] == s2[j]) {
-                    putchar(s1[i]);
-                    i++;
-                }
-    putchar('\n');
-    return 0;
-}
-
-
diff --git a/95.11/guia03/ex18.c b/95.11/guia03/ex18.c
@@ -1,57 +0,0 @@
-//    Reads a string of chars from stdin and check if it's
-//    a palindrome.
-
-#include <stdio.h>
-#include <ctype.h>
-
-#define MAX_LEN 100
-
-
-int main ( void ) {
-
-    char str[MAX_LEN];
-    int aux, len, i, j;
-
-    if(fgets(str, MAX_LEN, stdin) == NULL)
-        return 1;
-
-//    Converts all the string to lowercase;
-    for(i = 0; str[i] != '\0'; i++)
-        if(isupper(str[i]))
-            str[i] = tolower(str[i]);
-
-//    If the readed string it's a sentence, erases all
-//    the blank spaces between the words;
-    for(i = 0; str[i] != '\0'; i++) {
-        if(str[i] == ' ') {
-            aux = i;
-            while(str[aux] != '\0') {
-                str[aux] = str[aux + 1];
-                aux++;
-            }
-        }
-    }
-
-//    Counts the length of the string;
-    for(i = 0; str[i] != '\n'; i++)
-        ;
-
-//    Stored the lengh of the string for later, 
-//    and subtract one from i because of the last char;
-    len = i;
-    i = (i - 1);
-
-//    This part compares one by one the chars from the 
-//    string, first with last, second with before last,
-//    and so on, only comparing the next one if the previous
-//    one was equal;
-    for(j = 0; (str[j] == str[i]) && (str[j] != '\0'); j++, i--)
-        ;
-
-//    If the string or sentence its palindrome, then in the previous
-//    block j would end with the value of the lengh, stored previously;
-    if(j == len)
-        printf("La cadena es capicua.\n");
-
-    return 0;
-}
diff --git a/95.11/guia03/ex20.c b/95.11/guia03/ex20.c
@@ -1,24 +0,0 @@
-//    Reads a string of chars from stdin and converts
-//    it to a number, int or float;
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 100
-
-int main ( void ) {
-
-    char buffer[MAX_LEN];
-    int num1;
-    float num2;
-
-    fgets(buffer, MAX_LEN, stdin);
-    num1 = atoi(buffer);
-    printf("n1(int) = %d\n", num1);
-
-    fgets(buffer, MAX_LEN, stdin);
-    num2 = atof(buffer);
-    printf("n2(float) = %.2f\n", num2);
-
-    return 0;
-}
diff --git a/95.11/guia03/ex21.c b/95.11/guia03/ex21.c
@@ -1,20 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 100
-
-int main ( void ) {
-
-    char buffer[MAX_LEN];
-    float num;
-    char num2[MAX_LEN];
-
-    if(fgets(buffer, MAX_LEN, stdin) == NULL)
-        return 1;
-
-    num = atof(buffer);
-    sprintf(num2, "%.2f\n", num);
-
-    printf("%s", num2);
-    return 0;
-}
diff --git a/95.11/guia03/ex22.c b/95.11/guia03/ex22.c
@@ -1,20 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 100
-
-int main ( void ) {
-
-    char buffer[MAX_LEN];
-    int num;
-    char num2[MAX_LEN];
-
-    if(fgets(buffer, MAX_LEN, stdin) == NULL)
-        return 1;
-
-    num = atoi(buffer);
-    sprintf(num2, "%d\n", num);
-
-    printf("%s", num2);
-    return 0;
-}
diff --git a/95.11/guia03/ex23.c b/95.11/guia03/ex23.c
@@ -1,23 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 100
-
-int main ( void ) {
-
-    char buffer[MAX_LEN];
-    int num;
-    char num2[MAX_LEN];
-
-    if(fgets(buffer, MAX_LEN, stdin) == NULL)
-        return 1;
-
-    num = atoi(buffer);
-
-//    Converts num to octal and stores it on num2 str;
-    sprintf(num2, "%o\n", num);
-
-//    prints the string with the octal number;
-    printf("%s", num2);
-    return 0;
-}
diff --git a/95.11/guia03/ex23_imp.c b/95.11/guia03/ex23_imp.c
@@ -1,28 +0,0 @@
-//    Reads an integer from stdin and prints it
-//    on stdout in octal base; 
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 100
-#define ERR_MSG_NEG "Err: the number is negative"
-
-int main ( void ) {
-
-    int num;
-    char buffer[MAX_LEN];
-
-    if(fgets(buffer, MAX_LEN, stdin) == NULL)
-        return 1;
-
-//    Converts the input str to int, if the number
-//    is negative, puts an error message on stderr;
-    if((num = atoi(buffer)) < 0 ) {
-        fprintf(stderr, ERR_MSG_NEG"\n");
-        return 1;
-    }
-    
-//    prints the integer in octal base;
-    printf("%o\n", num);
-    return 0;
-}
diff --git a/95.11/guia03/ex24.c b/95.11/guia03/ex24.c
@@ -1,27 +0,0 @@
-//    Reads a number from stdin and prints it 
-//    in hexadecimal base on stout;
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 100
-
-int main ( void ) {
-
-    char buffer[MAX_LEN];
-    int num;
-    char num2[MAX_LEN];
-
-    if(fgets(buffer, MAX_LEN, stdin) == NULL)
-        return 1;
-
-    num = atoi(buffer);
-
-//    Converts num to hexadecimal and stores it
-//    on num2 str;
-    sprintf(num2, "%x\n", num);
-
-//    prints the string with the octal number;
-    printf("%s", num2);
-    return 0;
-}
diff --git a/95.11/guia03/ex24_imp.c b/95.11/guia03/ex24_imp.c
@@ -1,28 +0,0 @@
-//    Reads an non-negative integer from stdin and prints it
-//    on stdout in hexadecimal base; 
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 100
-#define ERR_MSG_NEG "Err: the number is negative"
-
-int main ( void ) {
-
-    unsigned int num;
-    char buffer[MAX_LEN];
-
-    if(fgets(buffer, MAX_LEN, stdin) == NULL)
-        return 1;
-
-//    Converts the input str to int, if the number
-//    is negative, puts an error message on stderr;
-    if((num = atoi(buffer)) < 0 ) {
-        fprintf(stderr, ERR_MSG_NEG"\n");
-        return 1;
-    }
-    
-//    prints the integer in hexadecimal base;
-    printf("%X\n", num);
-    return 0;
-}
diff --git a/95.11/guia03/ex25_imp.c b/95.11/guia03/ex25_imp.c
@@ -1,53 +0,0 @@
-//    Reads an integer from stdin and prints it
-//    on stdout in binary base.
-//    only for numbers below 128; 
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN    8 
-#define ERR_MSG_NEG "Err: invalid number!"
-
-int main ( void ) {
-
-    int i, num;
-    char buffer[MAX_LEN];
-//    0000 0000
-    int bin[MAX_LEN] = {0,0,0,0,0,0,0,0};
-
-    if(fgets(buffer, MAX_LEN, stdin) == NULL)
-        return 1;
-
-//    Converts the input str to int, if the number
-//    is negative or greater than 128, puts an 
-//    error message on stderr;
-    if((num = atoi(buffer)) < 0 || num > 128) {
-        fprintf(stderr, ERR_MSG_NEG"\n");
-        return 1;
-    }
-
-//    Converts num to binary base by dividing it
-//    by 2 until its zero, the rest of the division
-//    is stored in every itineration in bin[];
-    for(i = 0; num != 0; i++) {
-        if((num % 2) == 1) {
-            bin[i] = 1;
-        } else {
-            bin[i] = 0;
-        }
-        num = (num / 2);
-    }
-
-//    This part print bin in reverse order because
-//    the previous algorithm stores the values in 
-//    reverse order;
-    for(i = 7; i >= 0; i--) {
-        if(i == 3)
-            putchar(' ');
-
-        printf("%d", bin[i]);
-    }
-
-    putchar('\n');
-    return 0;
-}
diff --git a/95.11/guia03/ex26.c b/95.11/guia03/ex26.c
@@ -1,58 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 100
-#define ERR_MAX_STR_LEN "Err: the entered number is too big"
-
-
-int main ( void ) {
-
-    char buffer[MAX_LEN], str1[MAX_LEN], str2[MAX_LEN];
-    char dest[MAX_LEN];
-    int i, j, num;
-
-    if(fgets(str1, MAX_LEN, stdin) == NULL) {
-        return 1;
-    }
-
-//  This part counts the length of the first string
-//    and replaces the new line character for a blank space;
-    for(i = 0; str1[i] != '\0'; i++)
-        if(str1[i] == '\n')
-            str1[i] = ' ';
-            str1[i + 1] = '\0';
-
-    if(fgets(str2, MAX_LEN, stdin) == NULL) {
-        return 1;
-    }
-
-    if(fgets(buffer, MAX_LEN, stdin) == NULL) {
-       return 1;
-    }
-
-    num = atoi(buffer);
-
-//  This part checks if the input number is bigger than
-//  the length of the first string;
-    if(num > i) {
-        fprintf(stderr, ERR_MAX_STR_LEN"\n");
-        return 1;
-    }
-
-
-//    Removes the new line chracter from string two;
-    for(i = 0; str2[i] != '\0'; i++)
-        if(str2[i] == '\n')
-            str2[i] = '\0';
-
-    for(i = 0, j = 0; str2[j] != '\0'; i++) {
-        if((i <= num) && (str1[i] != '\0')) {
-            dest[i] = str1[i];
-        } else { 
-            dest[i] = str2[j];
-            j++;
-        }
-    }
-    printf("%s\n", dest);
-    return 0;
-}
diff --git a/95.11/guia03/ex27.c b/95.11/guia03/ex27.c
@@ -1,27 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 100
-
-int main ( void ) {
-
-    char str[MAX_LEN], buffer[MAX_LEN];
-    int i, j, num;
-
-    if(fgets(str, MAX_LEN, stdin) == NULL)
-        return 1;
-
-    if(fgets(buffer, MAX_LEN, stdin) == NULL)
-        return 1;
-
-    num = atoi(buffer);
-
-    for(i = 0; str[i] != '\0'; i++)
-        if(str[i] == '\n')
-            i++;
-            for(j = 0; j <= num; j++)
-                str[i + j] = ' ';
-
-    printf("%s\n", str);
-    return 0;
-}
diff --git a/95.11/guia03/ex28.c b/95.11/guia03/ex28.c
@@ -1,13 +0,0 @@
-#include <stdio.h>
-
-#define MAX_LEN 20
-
-int main (void) {
-
-    int i, vector[MAX_LEN];
-
-    for(i = 0; i < MAX_LEN; i++)
-        printf("%d\n", vector[i]);
-
-    return 0;
-}
diff --git a/95.11/guia03/ex29.c b/95.11/guia03/ex29.c
@@ -1,23 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 20
-
-int main (void) {
-
-    int i, suma, vector[MAX_LEN], vector_end;
-    char buffer[MAX_LEN];
-
-    vector_end = MAX_LEN;
-    for(i = 0, suma = 0; i < vector_end; i++) {
-        if(fgets(buffer, sizeof(int) + 1, stdin) != NULL) {
-            vector[i] = atoi(buffer);
-            suma += vector[i];
-        } else {
-            vector_end = i;
-            i = MAX_LEN;
-        }
-    }
-    printf("%d\n", suma);
-    return 0;
-}
diff --git a/95.11/guia03/ex30.c b/95.11/guia03/ex30.c
@@ -1,34 +0,0 @@
-//    Calculates the arithmetic mean of a certain amount of
-//    numbers. First ask for the quantity and then calculates
-//    it and prints it;
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MAX_LEN 20
-
-int main (void) {
-
-    int i, n;
-    float x, suma, numbers[MAX_LEN];
-    char buffer[MAX_LEN];
-
-//    Read the quantity of numbers to mean;
-    if(fgets(buffer, sizeof(int) + 1, stdin) != NULL)
-        n = atoi(buffer);
-    else return 1;
-
-//    Read the values to mean  and stores it on numbers;
-    for(i = 0, suma = 0; i < n; i++) {
-        if(fgets(buffer, sizeof(int) + 1, stdin) != NULL) {
-            numbers[i] = atof(buffer);
-            suma += numbers[i];
-        } else return 1;
-    }
-//    Calculate the arithmetic mean and stores it on x;
-    x = ((1 / (float)n) * suma); 
-    
-//    Print the arithmetic mean;
-    printf("x = %.3f\n", x);
-    return 0;
-}
diff --git a/95.11/guia03/ex30_std_dev.c b/95.11/guia03/ex30_std_dev.c
@@ -1,45 +0,0 @@
-//    Calculates the arithmetic mean of a certain amount of
-//    numbers. First ask for the quantity and then calculates
-//    it and prints it;
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-
-#define MAX_LEN 20
-
-int main (void) {
-
-    int i, n;
-    float d, x, suma, numbers[MAX_LEN];
-    char buffer[MAX_LEN];
-
-//    Read the quantity of numbers to mean;
-    if(fgets(buffer, sizeof(int) + 1, stdin) != NULL)
-        n = atoi(buffer);
-    else return 1;
-
-//    Read the values to mean  and stores it on numbers;
-    for(i = 0, suma = 0; i < n; i++) {
-        if(fgets(buffer, sizeof(int) + 1, stdin) != NULL) {
-            numbers[i] = atof(buffer);
-            suma += numbers[i];
-        } else return 1;
-    }
-
-//    Calculate the arithmetic mean and stores it on x;
-    x = ((1 / (float)n) * suma); 
-
-//    Calculates the standard deviation;
-    for(i = 0; i < n; i++) {
-        suma += (numbers[i] - x);
-        d = sqrtf((1/n) * powf(suma, 2.0));
-    }
-
-//    Print the arithmetic mean;
-    printf("x = %.3f\n", x);
-
-//    Print the standard deviation;
-    printf("d = %.3f\n", d);
-    return 0;
-}
diff --git a/95.11/guia03/ex32.c b/95.11/guia03/ex32.c
@@ -1,65 +0,0 @@
-//    Calculates the max or min in an array of numbers;
-//    of type int;
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <limits.h>
-
-#define MAX_ELEM                10
-#define NO_ARGUMENT_ENTERED        1 
-#define EXTREMO_ARGUMENT        1
-
-typedef enum {
-    MAXIMUM,
-    MINIMUM
-} extreme_t;
-
-typedef enum {
-    OK,
-    ERROR_INVOCATING_PROGRAM,
-    ERROR_NULL_POINTER
-} status_t;
-
-status_t validate_arguments (int argc, char ** argv);
-
-int main (int argc, char * argv[])
-{
-    size_t i;
-    int vector[MAX_ELEM] = {9, 10, 25, 31, 9, 5, 11, 46, 50, 20};
-    extreme_t extremo;
-    status_t st; 
-
-    if((st = validate_arguments(argc, argv)) != OK)
-        return st;
-
-    extremo = atoi(argv[EXTREMO_ARGUMENT]);
-    if(extremo == MAXIMUM) {
-    //    Find maximum element in array;
-        int maximum;
-        for(i = 0, maximum = INT_MIN; i < (sizeof(vector)/sizeof(vector[0])); i++)
-            if(vector[i] > maximum)
-                maximum = vector[i];
-        
-        printf("%d\n", maximum);
-    } else if (extremo == MINIMUM){
-    //    Find minimum element in array;
-        int minimum;
-        for(i = 0, minimum = INT_MAX; i < (sizeof(vector)/sizeof(vector[0])); i++)
-            if(vector[i] < minimum)
-                minimum = vector[i];
-
-        printf("%d\n", minimum);
-    }
-    return 0;
-}
-
-status_t validate_arguments (int argc, char ** argv) {
-    if(argc == NO_ARGUMENT_ENTERED)
-        return ERROR_INVOCATING_PROGRAM;
-
-    else if (argv == NULL)
-        return ERROR_NULL_POINTER;
-
-    else return OK;
-}
-
diff --git a/95.11/guia04/ex02.c b/95.11/guia04/ex02.c
@@ -1,15 +0,0 @@
-#include <stdio.h>
-
-#define MAX 10
-
-int main ( void ) {
-
-    int x, array[MAX];
-    array[4] = 1;
-
-    x = array[4];
-
-    printf("%d\n", x);
-
-    return 0;
-}
diff --git a/95.11/guia05/ex01.c b/95.11/guia05/ex01.c
@@ -1,18 +0,0 @@
-#include <stdio.h>
-
-unsigned long fact ( int num ) {
-    unsigned long j, res;
-    res = 1;
-
-    for (j = 1; j <= num; j++) {
-        res = (res * j);
-    }
-    return res;
-}
-
-int main ( void ) {
-
-    printf("%lu\n", fact(5));
-
-    return 0;
-}
diff --git a/95.11/guia05/ex02.c b/95.11/guia05/ex02.c
diff --git a/95.11/guia06/ex01.c b/95.11/guia06/ex01.c
@@ -1,20 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#define ERR_ARG "Error: No arguments"
-
-int main (int argc, char *argv[]) {
-    size_t i;
-    if(argc == 1) {
-        fprintf(stderr, ERR_ARG"\n");
-        return 1;
-    }
-
-    printf("argc: %d \n", argc);
-
-    for (i = 0; i < argc; i++) {
-        printf("argv[%ld] = %s \n", i, argv[i]);
-    }
-
-    return EXIT_SUCCESS;
-}
diff --git a/95.11/guia07/ex05.c b/95.11/guia07/ex05.c
@@ -1,31 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-
-#define MASK_BYTE 0xFF
-
-int main(void) {
-
-//    0x10 30 25 F4
-    unsigned int n = 271590900;
-
-//    Arreglo de 4 bytes;
-    unsigned char v[4]; 
-
-    size_t i;
-/*
-    v[0] = (n >> 24) & 0xFF;
-    v[1] = (n >> 16) & 0xFF;
-    v[2] = (n >> 8) & 0xFF;
-    v[3] = (n >> 0) & 0xFF;
-*/
-    for(i = 0; i < sizeof(unsigned int); i++)
-        v[i] = (n >> ( (sizeof(unsigned int) - 1 - i) * 8  )) & 0xFF;
-
-    printf("%d\n", n);
-    printf("%x\n", n);
-
-    for(i = 0; i < sizeof(unsigned int); i++)
-        printf("v[%lu] = %x\n", i, v[i]);
-
-    return EXIT_SUCCESS;
-}
diff --git a/95.11/guia08/ex01.c b/95.11/guia08/ex01.c
@@ -1,58 +0,0 @@
-//    Clones a given string entered as arguments of function main;
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define NO_ARGUMENT          1
-#define INIT_SIZE        100
-
-typedef enum {
-    OK,
-    ERROR_PROGRAM_INVOCATION,
-    ERROR_NULL_POINTER,
-    ERROR_ALLOC_MEMORY
-} status_t;
-
-status_t validar_argumentos(int argc, char **argv);
-
-int main (int argc, char * argv[]) 
-{
-    char *dest;
-    size_t i;
-    status_t st;
-
-//    Verify if arguments are right;
-    if((st = validar_argumentos(argc, argv) != OK))
-        return st;
-
-//    Allocates memmory in heap of size INIT_SIZE;
-    if((dest = (char *)malloc(INIT_SIZE * sizeof(char))) == NULL)
-            return ERROR_ALLOC_MEMORY;
-
-//    Assigns 1 to i to avoid the first element of argv, 
-//    which is the program name. Then copies every string of argv
-//    into dest and prints it on stdout;
-    for(i = 1; (int)i < argc; i++) {
-        strcpy(dest, argv[i]);
-    //    Puts a space in between strings, avoiding a blank
-    //    space after first string is printed;
-        if(i != 1) putchar(' ');
-        printf("%s", dest);
-    }
-
-//    Adds the new line character;
-    putchar('\n');
-    free(dest);
-    return OK;
-}
-
-status_t validar_argumentos(int argc, char **argv) 
-{
-    if(argc == NO_ARGUMENT)
-        return ERROR_PROGRAM_INVOCATION;
-
-    else if(argv == NULL)
-        return ERROR_NULL_POINTER;
-
-    else return OK;
-}
diff --git a/95.11/guia08/malloc_basics.c b/95.11/guia08/malloc_basics.c
@@ -1,22 +0,0 @@
-//    Stores an array of numbers in heap, then prints it on
-//    stdout finally frees the memory used;
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#define ARR_LEN 10
-
-int main (void) 
-{
-    int *p;
-
-    if((p = (int*)malloc(ARR_LEN * sizeof(int))) == NULL)
-        return 1;
-
-    for(int i = 0; i < ARR_LEN; i++) {
-        *(p + i) = i;
-        printf("%d\n", *(p + i));
-    }
-    free(p);
-    return 0;
-}
diff --git a/95.11/guia08/text.txt b/95.11/guia08/text.txt
@@ -1,23 +0,0 @@
-The  malloc()  function allocates size bytes and returns a pointer
-to the allocated memory.  The memory is not initialized.  If  size
-is 0, then malloc() returns either NULL, or a unique pointer value
-that can later be successfully passed to free().
-
-The free() function frees the memory  space  pointed  to  by  ptr,
-which must have been returned by a previous call to malloc(), cal‐
-loc(), or realloc().  Otherwise, or if free(ptr) has already  been
-called  before, undefined behavior occurs.  If ptr is NULL, no op‐
-eration is performed.
-
-The calloc() function allocates memory for an array of nmemb  ele‐
-ments  of  size  bytes each and returns a pointer to the allocated
-memory.  The memory is set to zero.  If nmemb or size is  0,  then
-calloc()  returns  either NULL, or a unique pointer value that can
-later be successfully passed to free().  If the multiplication  of
-nmemb and size would result in integer overflow, then calloc() re‐
-turns an error.  By contrast, an integer overflow would not be de‐
-tected  in the following call to malloc(), with the result that an
-incorrectly sized block of memory would be allocated:
-
-   malloc(nmemb * size);
-
diff --git a/95.11/tp01/Makefile b/95.11/tp01/Makefile
@@ -1,18 +0,0 @@
-$(CC)=gcc
-
-all: make_main clean
-
-
-make_main: main.o arguments.o
-    $(CC) main.o arguments.o -o main
-
-main.o: src/main.c include/main.h include/arguments.h include/macros.h
-    $(CC) -c src/main.c
-
-arguments.o: src/arguments.c include/arguments.h include/macros.h
-    $(CC) -c src/arguments.c
-
-clean:
-    rm -f *.o
-
-
diff --git a/95.11/tp01/README.md b/95.11/tp01/README.md
@@ -1,17 +0,0 @@
-# TRABAJO PRACTICO NUMERO 1 - ALGORITMOS Y PROGRAMACION I (95.11)
-
-This folder contains the first project of "algoritmos y 
-programacion I" a subject from Facultad de Ingenieria de la
-Universidad de Buenos Aires. This project is a program that 
-runs on CLI which its function is to process data entered via 
-a .csv file, with a specified format, otherwise it will be considered
-corrupt. 
-
-What it does is receive a number for a country, date, and number of
-cases (of COVID19), and prints it on stdout with a human readable
-format.
-
-Bibliography:
-
-"The C programming language" - Brian W. Kernighan & Dennis Ritchie
-
diff --git a/95.11/tp01/include/arguments.h b/95.11/tp01/include/arguments.h
@@ -1,13 +0,0 @@
-#include "main.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifndef ARGUMENTS_H
-#define ARGUMENTS_H
-
-status_t validate_arguments(int argc, char * argv[]);
-
-status_t set_files_name(int argc, char * argv[], char * src, char * dest);
-
-#endif
diff --git a/95.11/tp01/include/data.h b/95.11/tp01/include/data.h
@@ -1,4 +0,0 @@
-#ifndef DATA_H
-#define DATA_H
-
-#endif
diff --git a/95.11/tp01/include/macros.h b/95.11/tp01/include/macros.h
@@ -1,10 +0,0 @@
-#ifndef MACROS_H
-#define MACROS_H
-
-#define NO_CMD_ARGUMENTS    1
-#define MAX_CMD_ARGUMENTS    5
-
-#define SOURCE_ARGUMENT            "-in"
-#define DESTINATION_ARGUMENT    "-out"
-
-#endif
diff --git a/95.11/tp01/include/main.h b/95.11/tp01/include/main.h
@@ -1,10 +0,0 @@
-#ifndef MAIN_H
-#define MAIN_H
-
-typedef enum {
-    OK,
-    ERROR_INVOCATING_PROGRAM,
-    ERROR_NULL_POINTER
-} status_t;
-
-#endif
diff --git a/95.11/tp01/main b/95.11/tp01/main
Binary files differ.
diff --git a/95.11/tp01/src/arguments.c b/95.11/tp01/src/arguments.c
@@ -1,35 +0,0 @@
-#include "../include/arguments.h"
-#include "../include/macros.h"
-
-
-//    Checks if the arguments are right;
-status_t validate_arguments(int argc, char * argv[])
-{
-    if(argc == NO_CMD_ARGUMENTS)
-        return ERROR_INVOCATING_PROGRAM;
-    else if(argv == NULL)
-        return ERROR_NULL_POINTER;
-
-    return OK;
-}
-
-//    Set the files name acording to the arguments;
-status_t set_files_name(int argc, char * argv[], char * src, char * dest)
-{
-    int i;
-    for(i = 1; i < argc; i++) {
-        if(!strcmp(argv[i], SOURCE_ARGUMENT)) {
-            printf("Encontre un '-in'\n");
-            strcpy(src, argv[++i]);
-            printf("\tthen input file: %s\n", src);
-        }
-        if(!strcmp(argv[i], DESTINATION_ARGUMENT)) {
-            printf("Encontre un '-out'\n");
-            strcpy(dest, argv[++i]);
-            printf("\tthen output file: %s\n", argv[i]);
-        }
-
-    }
-    return OK;
-}
-
diff --git a/95.11/tp01/src/data.c b/95.11/tp01/src/data.c
diff --git a/95.11/tp01/src/main.c b/95.11/tp01/src/main.c
@@ -1,28 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "../include/main.h"
-#include "../include/arguments.h"
-#include "../include/macros.h"
-
-int main(int argc, char * argv[])
-{
-    status_t st;
-    if((st = validate_arguments(argc, argv)) != OK)
-        return st;
-    
-    char * src;
-    char * dest;
-
-    src = (char *)malloc(100 * sizeof(char));
-    dest = (char *)malloc(100 * sizeof(char));
-
-    if((st = set_files_name(argc, argv, src, dest)) != OK)
-        return st;
-
-    printf("src: %s, dest: %s;\n", src, dest);
-
-    return OK;
-}
-
-