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답안 #995545

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
995545 2024-06-09T10:25:27 Z nika7878 Tents (JOI18_tents) C++14
100 / 100
 84 ms 71116 KB 
#include <bits/stdc++.h>
using namespace std;
long long dp[3005][3005];
int main()
{
    int n, m;
    cin >> n >> m;
    long long mod=1e9+7;
    for (int i=0; i<=3000; i++)
        dp[i][0]=dp[0][i]=1;
    for (int i=1; i<=3000; i++) 
    {
        for (int j=1; j<=3000; j++) 
        {
            dp[i][j]+=dp[i-1][j];
            dp[i][j]+=dp[i-1][j-1]*4*j;
            if (j>=2) 
                dp[i][j]+=dp[i-1][j-2]*j*(j-1)/2;
            if (i >= 2) 
                dp[i][j]+=dp[i-2][j-1]*(i-1)*j;
            dp[i][j]%=mod;
        }
    } 
    cout << dp[n][m]-1;

    return 0;
}

Subtask #1
48.0 / 48.0

# 결과 실행 시간 메모리 Grader output
1 Correct 65 ms 70996 KB Output is correct
2 Correct 84 ms 70804 KB Output is correct
3 Correct 70 ms 70992 KB Output is correct
4 Correct 69 ms 70996 KB Output is correct
5 Correct 68 ms 70992 KB Output is correct
6 Correct 70 ms 70848 KB Output is correct
7 Correct 74 ms 70852 KB Output is correct
8 Correct 72 ms 70776 KB Output is correct
9 Correct 74 ms 70996 KB Output is correct
10 Correct 72 ms 70992 KB Output is correct
11 Correct 75 ms 70776 KB Output is correct
12 Correct 74 ms 70992 KB Output is correct

Subtask #2
52.0 / 52.0

# 결과 실행 시간 메모리 Grader output
1 Correct 65 ms 70996 KB Output is correct
2 Correct 84 ms 70804 KB Output is correct
3 Correct 70 ms 70992 KB Output is correct
4 Correct 69 ms 70996 KB Output is correct
5 Correct 68 ms 70992 KB Output is correct
6 Correct 70 ms 70848 KB Output is correct
7 Correct 74 ms 70852 KB Output is correct
8 Correct 72 ms 70776 KB Output is correct
9 Correct 74 ms 70996 KB Output is correct
10 Correct 72 ms 70992 KB Output is correct
11 Correct 75 ms 70776 KB Output is correct
12 Correct 74 ms 70992 KB Output is correct
13 Correct 66 ms 70992 KB Output is correct
14 Correct 72 ms 70996 KB Output is correct
15 Correct 72 ms 70992 KB Output is correct
16 Correct 72 ms 70828 KB Output is correct
17 Correct 70 ms 70996 KB Output is correct
18 Correct 72 ms 70872 KB Output is correct
19 Correct 74 ms 70996 KB Output is correct
20 Correct 70 ms 70996 KB Output is correct
21 Correct 73 ms 70932 KB Output is correct
22 Correct 74 ms 71116 KB Output is correct
23 Correct 73 ms 70868 KB Output is correct
24 Correct 72 ms 70996 KB Output is correct
25 Correct 71 ms 70996 KB Output is correct
26 Correct 66 ms 70992 KB Output is correct
27 Correct 75 ms 70980 KB Output is correct