Submission #162946

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Source Code Expand

#include <stdio.h>

int main() {
  int i;
  char m[101];
  scanf("%s",m);
  if(m[1]!='\0') {
    if(m[0]=='a') {
      printf("-1\n");
    } else {
      printf("a\n");
    }
  } else {
    printf("a\n");
  }
  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:6:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result