Submission #1131183

---

Source Code Expand

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <math.h>
#include <assert.h>
#include <queue>
#include <map>
#include <set>
#include <string>
#include <algorithm>
#include <iostream>
#include <functional>
#include <unordered_map>
#include <unordered_set>
#include <list>
#include <bitset>

using namespace std;
typedef pair<int, int> Pi;
typedef long long ll;
#define pii Pi
#define pll PL
#define Fi first
#define Se second
#define pb(x) push_back(x)
#define sz(x) ((int)(x).size())
#define rep(i, n) for(int i=0;i<n;i++)
#define all(x) (x).begin(), (x).end()
typedef tuple<int, int, int> t3;
typedef pair<ll, ll> PL;

int A[100010];
const int MOD = 1e9 + 7;

void solve(){
	int n; scanf("%d", &n);
	for(int i=1;i<=n;i++){
		int x; scanf("%d", &x);
		A[i+1] = max(0, i - (x+1)/2);
	}
	ll ans = 1;
	for(int i=0, j=1;i<n;i++){
		while(j<=n && A[j] <= i)++j;
		ans = ans * (j-i-1) % MOD;
	}
	printf("%lld\n", ans);
}

int main(){
	int Tc = 1; //scanf("%d", &Tc);
	for(int tc=1;tc<=Tc;tc++){
		//printf("Case #%d: ", tc);
		solve();
	}
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘void solve()’:
./Main.cpp:37:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  int n; scanf("%d", &n);
                        ^
./Main.cpp:39:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   int x; scanf("%d", &x);
                         ^

Judge Result