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답안 #202186

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
202186 2020-02-14T05:02:17 Z nvmdava Tents (JOI18_tents) C++17
100 / 100
 72 ms 71032 KB 
#include <bits/stdc++.h>
#define MOD 1000000007

long long dp[3005][3005];

int main(){
    int n, m;
    std::cin>>n>>m;
    for(int i = 0; i <= n; ++i)
        dp[i][0] = 1;
    for(int j = 0; j <= m; ++j)
        dp[0][j] = 1;

    for(int i = 1; i <= n; ++i)
        for(int j = 1; j <= m; ++j)
            dp[i][j] = (dp[i - 1][j] + (j >= 2 ? j * (j - 1) / 2 * dp[i - 1][j - 2] : 0) + 4 * j * dp[i - 1][j - 1] + (i >= 2 ? dp[i - 2][j - 1] * j * (i - 1) : 0)) % MOD;
    std::cout<<dp[n][m] - 1;
}

Subtask #1
48.0 / 48.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 504 KB Output is correct
4 Correct 5 ms 1144 KB Output is correct
5 Correct 5 ms 632 KB Output is correct
6 Correct 5 ms 1400 KB Output is correct
7 Correct 5 ms 888 KB Output is correct
8 Correct 5 ms 1400 KB Output is correct
9 Correct 5 ms 760 KB Output is correct
10 Correct 5 ms 1784 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 6 ms 2296 KB Output is correct

Subtask #2
52.0 / 52.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 504 KB Output is correct
4 Correct 5 ms 1144 KB Output is correct
5 Correct 5 ms 632 KB Output is correct
6 Correct 5 ms 1400 KB Output is correct
7 Correct 5 ms 888 KB Output is correct
8 Correct 5 ms 1400 KB Output is correct
9 Correct 5 ms 760 KB Output is correct
10 Correct 5 ms 1784 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 6 ms 2296 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 9 ms 9720 KB Output is correct
15 Correct 47 ms 55160 KB Output is correct
16 Correct 10 ms 4088 KB Output is correct
17 Correct 14 ms 12920 KB Output is correct
18 Correct 20 ms 17144 KB Output is correct
19 Correct 54 ms 62968 KB Output is correct
20 Correct 47 ms 50940 KB Output is correct
21 Correct 32 ms 33784 KB Output is correct
22 Correct 33 ms 35448 KB Output is correct
23 Correct 30 ms 27128 KB Output is correct
24 Correct 72 ms 71032 KB Output is correct
25 Correct 56 ms 61304 KB Output is correct
26 Correct 62 ms 66680 KB Output is correct
27 Correct 68 ms 68984 KB Output is correct