Submission #1697207


Source Code Expand

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
typedef pair<int,P> P1;
typedef pair<P,P> P2;
typedef pair<double,int>Q;
#define pu push
#define pb push_back
#define mp make_pair
#define eps 1e-7
#define INF 1000000000
#define mod 1000000007
#define fi first
#define sc second
#define rep(i,x) for(int i=0;i<x;i++)
#define repn(i,x) for(int i=1;i<=x;i++)
#define SORT(x) sort(x.begin(),x.end())
#define ERASE(x) x.erase(unique(x.begin(),x.end()),x.end())
#define POSL(x,v) (lower_bound(x.begin(),x.end(),v)-x.begin())
#define POSU(x,v) (upper_bound(x.begin(),x.end(),v)-x.begin())
int n,p[1000005],M[1000005];
ll ans;
int main(){
	cin>>n; ans = n;
	int cnt = 0;
	rep(i,n){
		cin>>p[i];
		if(i==0) cnt+=p[i];
		else if(p[i]-p[i-1]>1) cnt++;
		
		if(i == cnt){
			ans = i+1; break;
		}
	}
	//cout<<beg<<endl;
	repn(i,n-1){
		ans*=1LL*i; ans%=mod;
	}
	cout<<ans<<endl;
}

Submission Info

Submission Time
Task A - Robot Racing
User IH19980412
Language C++14 (GCC 5.4.1)
Score 0
Code Size 952 Byte
Status WA
Exec Time 56 ms
Memory 4480 KB

Judge Result

Set Name Sample Subtask All
Score / Max Score 0 / 0 0 / 500 0 / 400
Status
AC × 4
AC × 11
WA × 3
AC × 16
WA × 12
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt
Subtask 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 2_00.txt, 2_01.txt, 2_02.txt, 2_03.txt, 2_04.txt, 2_05.txt, 2_06.txt, 2_07.txt, 2_08.txt, 2_09.txt, 2_10.txt, 2_11.txt, 2_12.txt
Case Name Status Exec Time Memory
0_00.txt AC 2 ms 2304 KB
0_01.txt AC 2 ms 2304 KB
0_02.txt AC 1 ms 2304 KB
0_03.txt AC 2 ms 2304 KB
1_00.txt AC 1 ms 2304 KB
1_01.txt AC 2 ms 2304 KB
1_02.txt AC 2 ms 2304 KB
1_03.txt WA 1 ms 2304 KB
1_04.txt AC 1 ms 2304 KB
1_05.txt AC 1 ms 2304 KB
1_06.txt WA 1 ms 2304 KB
1_07.txt AC 1 ms 2304 KB
1_08.txt AC 2 ms 2304 KB
1_09.txt WA 1 ms 2304 KB
1_10.txt AC 1 ms 2304 KB
2_00.txt WA 2 ms 2304 KB
2_01.txt AC 40 ms 4352 KB
2_02.txt AC 56 ms 4352 KB
2_03.txt WA 2 ms 2304 KB
2_04.txt WA 2 ms 2304 KB
2_05.txt WA 2 ms 2304 KB
2_06.txt WA 2 ms 2304 KB
2_07.txt WA 2 ms 2304 KB
2_08.txt WA 2 ms 2304 KB
2_09.txt WA 2 ms 2304 KB
2_10.txt WA 2 ms 2304 KB
2_11.txt AC 53 ms 4352 KB
2_12.txt AC 54 ms 4480 KB