Submission #1131169

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Source Code Expand

#include <iostream>
#include <cstdio>
#include <cstdlib>
using namespace std;

typedef long long ll;
const ll MOD = (ll)1e9 + 7;
ll mult(ll x, ll y)
{
	return (x * y) % MOD;
}

int main()
{
//	freopen("input.txt", "r", stdin);
//	freopen("output.txt", "w", stdout);

	ll ans = 1;
	int n;
	scanf("%d", &n);
	int m = 0;
	while(n--)
	{
		int x;
		scanf("%d", &x);
		if (2 * m + 1 > x)
		{
			ans = mult(ans, m + 1);
			m--;
		}
		m++;
	}
	while(m > 0)
	{
		ans = mult(ans, m);
		m--;
	}
	printf("%lld\n", ans);

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:20:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
./Main.cpp:25:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &x);
                  ^

Judge Result