oj.uz

답안 #1033997

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1033997 2024-07-25T08:31:14 Z vjudge1 Tents (JOI18_tents) C++14
100 / 100
 121 ms 70908 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
    int n,m;
    cin >> n >> m;
    const int mod=1e9+7;
    int DP[n+1][m+1];
    for(int j=0;j<=m;j++){
        DP[0][j]=1;
    }
    for(int i=1;i<=n;i++){
        for(int j=0;j<=m;j++){
            DP[i][j]=0;
            if(i>1&&j>0){
                DP[i][j]+=(DP[i-2][j-1]*((j*(i-1))%mod));
                DP[i][j]%=mod;
            }
            if(j>1){
                DP[i][j]=(DP[i][j]+((DP[i-1][j-2]*((j*(j-1)/2)%mod))%mod));
                DP[i][j]%=mod;
            }
            if(j>0){
                DP[i][j]=(DP[i][j]+((4*DP[i-1][j-1]*j)%mod));
                DP[i][j]%=mod;
            }
            DP[i][j]+=DP[i-1][j];
            DP[i][j]%=mod;
        }
    }
    cout << (DP[n][m]+mod-1)%mod;
}

Subtask #1
48.0 / 48.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 2 ms 1116 KB Output is correct

Subtask #2
52.0 / 52.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 2 ms 1116 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 82 ms 44124 KB Output is correct
16 Correct 5 ms 3160 KB Output is correct
17 Correct 18 ms 10196 KB Output is correct
18 Correct 23 ms 12380 KB Output is correct
19 Correct 97 ms 51440 KB Output is correct
20 Correct 74 ms 41208 KB Output is correct
21 Correct 50 ms 27228 KB Output is correct
22 Correct 45 ms 26728 KB Output is correct
23 Correct 27 ms 15108 KB Output is correct
24 Correct 121 ms 70908 KB Output is correct
25 Correct 90 ms 52568 KB Output is correct
26 Correct 103 ms 60240 KB Output is correct
27 Correct 117 ms 67924 KB Output is correct