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  1. #include <stdio.h>
  2.  
  3. void myToUpper(char s[]) {
  4.     int i;
  5.     for (i = 0; s[i] != '\0'; i++) {
  6.         if ('a' <= s[i] && s[i] <= 'z') {  // Corrected condition
  7.             s[i] = s[i] - 32;  // Converts lowercase to uppercase
  8.         }
  9.     }
  10. }
  11.  
  12. int main() {
  13.     char s[100];
  14.     scanf("%s", s);
  15.     printf("%s -> ", s);
  16.     myToUpper(s);
  17.     printf("%s\n", s);
  18.     return 0;
  19. }
  20.  
Success #stdin #stdout 0s 5268KB
comments (?)
stdin
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aBcDe
stdout
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aBcDe -> ABCDE
https://ideone.com/yuqFRJ
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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