commit 38474909a99d29efb03002231a495578a2b7a34c
parent d1cbe5d9bc539cc44a88e186f92533eed2e2245a
Author: Martin J. Klöckner <martin.cachari@gmail.com>
Date: Thu, 3 Dec 2020 20:54:51 -0300
Added more exercices (mostly unfinished)
Diffstat:
9 files changed, 117 insertions(+), 13 deletions(-)
diff --git a/95.11/guia03/a.out b/95.11/guia03/a.out
Binary files differ.
diff --git a/95.11/guia03/ex26.c b/95.11/guia03/ex26.c
@@ -2,7 +2,7 @@
#include <stdlib.h>
#define MAX_LEN 100
-
+#define ERR_MAX_STR_LEN "Err: the entered number is too big"
int main ( void ) {
@@ -16,12 +16,11 @@ int main ( void ) {
}
// This part couts the lengh of the first string
-// and removes the new line character;
+// 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];
-
- printf("str1 length = %d\n", i);
+ str1[i] = ' ';
+ str1[i + 1] = '\0';
if(fgets(str2, MAX_LEN, stdin) == NULL) {
return 1;
@@ -32,30 +31,28 @@ int main ( void ) {
}
num = atoi(buffer);
- printf("str1 = %s\n", str1);
- printf("str2 = %s\n", str2);
- printf("num = %d\n", num);
// This part checks if the input number is bigger than
-// the length of the string;
+// 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) {
+ if((i <= num) && (str1[i] != '\0')) {
dest[i] = str1[i];
} else {
dest[i] = str2[j];
j++;
}
}
-// printf("%d\n", i);
-// printf("%d\n", j);
-// printf("%s\n", dest);
+ printf("%s\n", dest);
return 0;
}
diff --git a/95.11/guia03/ex27.c b/95.11/guia03/ex27.c
@@ -0,0 +1,27 @@
+#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
@@ -0,0 +1,13 @@
+#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
@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+#define MAX_LEN 20
+
+int main (void) {
+
+ int i, num, vector[MAX_LEN];
+ char buffer[MAX_LEN];
+
+
+
+ for(i = 0; i < MAX_LEN; i++)
+ printf("%d\n", vector[i]);
+
+ return 0;
+}
diff --git a/95.11/guia05/ex02.c b/95.11/guia05/ex02.c
diff --git a/95.11/guia06/a.out b/95.11/guia06/a.out
Binary files differ.
diff --git a/95.11/guia06/ex01.c b/95.11/guia06/ex01.c
@@ -0,0 +1,20 @@
+#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
@@ -0,0 +1,31 @@
+#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;
+}
