oj.uz

답안 #1034059

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1034059 2024-07-25T09:17:54 Z vjudge1 Tents (JOI18_tents) C++17
100 / 100
 132 ms 70736 KB 
#include<bits/stdc++.h>
#define int long long
using namespace std;
const int mod=1e9+7;
int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n,m;
    cin>>n>>m;
    int dp[n+1][m+1];
    memset(dp,0,sizeof(dp));
    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]=dp[i-1][j-1]*4*j%mod;
            dp[i][j]=(dp[i][j]+dp[i-1][j])%mod;
            if(j>1) dp[i][j]=(dp[i][j]+dp[i-1][j-2]*(j*(j-1)/2%mod)%mod)%mod;
            if(i>1) dp[i][j]=(dp[i][j]+dp[i-2][j-1]*j%mod*(i-1)%mod)%mod;
        }
    }
    cout<<(dp[n][m]-1+mod)%mod;
}

Subtask #1
48.0 / 48.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 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 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 392 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 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 0 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 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 392 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 2 ms 1116 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 90 ms 44124 KB Output is correct
16 Correct 6 ms 3264 KB Output is correct
17 Correct 18 ms 10076 KB Output is correct
18 Correct 23 ms 12380 KB Output is correct
19 Correct 97 ms 51292 KB Output is correct
20 Correct 78 ms 41228 KB Output is correct
21 Correct 53 ms 27228 KB Output is correct
22 Correct 50 ms 26908 KB Output is correct
23 Correct 28 ms 14940 KB Output is correct
24 Correct 132 ms 70736 KB Output is correct
25 Correct 101 ms 52568 KB Output is correct
26 Correct 116 ms 60252 KB Output is correct
27 Correct 127 ms 68180 KB Output is correct