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답안 #202188

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
202188 2020-02-14T05:06:49 Z nvmdava Tents (JOI18_tents) C++17
100 / 100
 69 ms 70904 KB 
#include <bits/stdc++.h>

long long dp[3005][3005], n, m, i, j;

int main(){
    std::cin>>n>>m;
    for(i = 0; i <= 3000; ++i)
        dp[i][0] = dp[0][i] = 1;

    for(i = 1; i <= n; ++i)
        for(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)) % 1000000007;
    std::cout<<dp[n][m] - 1;
}

Subtask #1
48.0 / 48.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 12412 KB Output is correct
2 Correct 10 ms 12536 KB Output is correct
3 Correct 10 ms 12536 KB Output is correct
4 Correct 10 ms 12536 KB Output is correct
5 Correct 10 ms 12536 KB Output is correct
6 Correct 10 ms 12668 KB Output is correct
7 Correct 11 ms 12664 KB Output is correct
8 Correct 10 ms 12536 KB Output is correct
9 Correct 11 ms 12536 KB Output is correct
10 Correct 10 ms 12792 KB Output is correct
11 Correct 12 ms 12536 KB Output is correct
12 Correct 11 ms 13176 KB Output is correct

Subtask #2
52.0 / 52.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 12412 KB Output is correct
2 Correct 10 ms 12536 KB Output is correct
3 Correct 10 ms 12536 KB Output is correct
4 Correct 10 ms 12536 KB Output is correct
5 Correct 10 ms 12536 KB Output is correct
6 Correct 10 ms 12668 KB Output is correct
7 Correct 11 ms 12664 KB Output is correct
8 Correct 10 ms 12536 KB Output is correct
9 Correct 11 ms 12536 KB Output is correct
10 Correct 10 ms 12792 KB Output is correct
11 Correct 12 ms 12536 KB Output is correct
12 Correct 11 ms 13176 KB Output is correct
13 Correct 11 ms 12536 KB Output is correct
14 Correct 11 ms 12536 KB Output is correct
15 Correct 51 ms 56184 KB Output is correct
16 Correct 13 ms 15224 KB Output is correct
17 Correct 20 ms 22136 KB Output is correct
18 Correct 21 ms 24568 KB Output is correct
19 Correct 56 ms 63352 KB Output is correct
20 Correct 49 ms 53168 KB Output is correct
21 Correct 34 ms 39288 KB Output is correct
22 Correct 34 ms 38904 KB Output is correct
23 Correct 23 ms 27124 KB Output is correct
24 Correct 69 ms 70904 KB Output is correct
25 Correct 64 ms 63152 KB Output is correct
26 Correct 64 ms 67424 KB Output is correct
27 Correct 68 ms 69368 KB Output is correct