Submission #3414381

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Source Code Expand

#include <stdio.h>
#include <string.h>

int main()
{
	char	s[20];

	scanf("%s", s);

	if (strcmp(s, "a") == 0) {
		printf("-1\n");
	}
	else if (1 <= strlen(s)) {
		printf("a\n");
	}

	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:8:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", s);
  ^

Judge Result