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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'){
  7.             s[i] = s[i] - 32;
  8.         }
  9.     }
  10.     return;
  11. }
  12.  
  13. int main(){
  14.     char s[100];
  15.     scanf("%s",s);
  16.     printf("%s -> ",s);
  17.     myToUpper(s);
  18.     printf("%s\n",s);
  19.     return 0;
  20. }
  21.  
Success #stdin #stdout 0s 5324KB
comments (?)
stdin
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aBcDe
stdout
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aBcDe -> ABCDE
https://ideone.com/doiZGv
language:
C (gcc 8.3)
created:
5 hours ago
visibility:
public

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