提出 #1415420

---

ソースコード 拡げる

#include <stdio.h>
#include <math.h>

#define CONS (1000000000 + 7)

int main()
{
	long long int n;
	long long int m;

	long long int i;

	unsigned long long int nm = 1;

	scanf("%lld %lld", &n, &m);

	if(n+1 == m || m+1 == n){
		for(i = 2; i <= n; i++){
			nm *= i;
			nm %= CONS;
		}
		for(i = 2; i <= m; i++){
			nm *= i;
			nm %= CONS;
		}
	}
	else if(n == m){
		for(i = 1; i <= n; i++){
			nm *= i;
			nm %= CONS;
		}

		nm = (nm * nm * 2) % CONS;
	}
	else {
		nm = 0;
	}

	printf("%lld\n", nm);

	return 0;
}

提出情報

コンパイルエラー

./Main.c: In function ‘main’:
./Main.c:15:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld %lld", &n, &m);
  ^

ジャッジ結果