Submission #891174

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Source Code Expand

#include<stdio.h>
int main(){
  char s[20];
  int i;
  scanf("%s",s);
  for(i=0;s[i];i++){
    if(i==4)printf(" ");
    printf("%c",s[i]);
  }printf("\n");
  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:5:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",s);
   ^

Judge Result