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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(s[i]>='a'&&s[i]<='z'){
  7. 		s[i]-=32;
  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 0.01s 5312KB
comments (?)
stdin 
aBcDe
stdout 
aBcDe -> ABCDE
https://ideone.com/bG8ynI
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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