1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <ctype.h> 4 5 #define MAX_LEN 5 // max digits of the entered degree; 6 #define ERR_MSG_LEN "El angulo ingresado contiene demasiados digitos" 7 8 #define FST_YR 48 9 #define SND_YR 95 10 #define TRD_YR 143 11 12 13 typedef enum { 14 FIRST, SECOND, THIRD, FOURTH 15 } year_t; 16 17 18 void clean(char *buffer) 19 { 20 for(size_t i = 0; i < MAX_LEN; i++) 21 buffer[i] = '\0'; 22 } 23 24 25 int main(void) { 26 27 char buffer[MAX_LEN]; 28 clean(buffer); 29 int c, d, i; 30 year_t e; 31 i = 0; 32 while(((c = getchar()) != EOF) && c != '\n') { 33 if(i < MAX_LEN) { 34 buffer[i] = c; 35 i++; 36 } else if (i >= MAX_LEN) { 37 fprintf(stderr, ERR_MSG_LEN"\n"); 38 return 1; 39 } 40 } 41 d = atoi(buffer); 42 43 if (d <= FST_YR) 44 e = FIRST; 45 else if ((d > FST_YR) && (d <= SND_YR)) 46 e = SECOND; 47 else if ((d > SND_YR) && d <= (TRD_YR)) 48 e = THIRD; 49 else if (d > TRD_YR) 50 e = FOURTH; 51 52 53 switch (e) 54 { 55 case FIRST: 56 printf("Primer año\n"); 57 break; 58 case SECOND: 59 printf("Segundo año\n"); 60 break; 61 case THIRD: 62 printf("Tercer año\n"); 63 break; 64 case FOURTH: 65 printf("Curto año o superior\n"); 66 break; 67 } 68 return 0; 69 } 70 71 72 73
