#include <stdio.h>
int change(char *charlist){
int i = 0;
while(*(charlist+i) != "\0"){
if(*(charlist+i) == 'h'){
*(charlist+i)='h';
}
i++;
}
}
int main(void) {
char str[] = "hello world";
// 'h'と'w'を大文字にする
change(&str);
return 0;
}
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