Submission #1131249

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Source Code Expand

#include <algorithm>
#include <cassert>
#include <iostream>
#include <vector>
#include <cstdio>
#include <complex>
#include <cstring>

using namespace std;

const int N = 100000 + 5;
const int MOD = 1000000000 + 7;

int n;
int x[N];

void solve()
{
    cin >> n;
    for(int i = 0; i < n; ++ i) {
        scanf("%d", x + i);
    }
    long long ans = 1;
    int cur = 1;
    int cnt = 1;
    for(int i = 0; i < n; ++ i) {
        if (x[i] >= cur) {
            cnt ++;
            cur += 2;
            continue;
        }
        ans = ans * cnt % MOD;
    }
    for(int i = 1; i <= cnt - 1; ++ i) {
        ans = ans * i % MOD;
    }
    cout << ans << endl;
}

int main()
{
    solve();
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘void solve()’:
./Main.cpp:21:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", x + i);
                           ^

Judge Result