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Submission #781385

# Submission time Handle Problem Language Result Execution time Memory
781385 2023-07-13T05:06:19 Z 이성호(#10012) JOI15_road_development (JOI15_road_development) C++14
0 / 100
 108 ms 143540 KB 
#include <iostream>
#define int long long
using namespace std;
const int mod = 1e9 + 7;
long long dp[3005][3005];
signed main()
{
    dp[1][1] = 5;
    for (int i = 2; i <= 3000; i++) {
        dp[i][1] = dp[1][i] = i * (i-1) / 2 + i * 4 + 1;
    }
    for (int i = 1; i <= 3000; i++) {
        dp[i][0] = dp[0][i] = 1;
    }
    for (int i = 2; i <= 3000; i++) {
        for (int j = 2; j <= 3000; j++) {
            dp[i][j] = (j * (j-1) / 2 * dp[i-1][j-2] + j * (i-1) * dp[i-2][j-1] + j * 4 * dp[i-1][j-1] + dp[i-1][j]) % mod;
        }
    }
    int h, w; cin >> h >> w;
    cout << dp[h][w] - 1 << '\n';
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 46 ms 70860 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Runtime error 108 ms 143516 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Runtime error 100 ms 143540 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Runtime error 100 ms 143524 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 46 ms 70860 KB Output isn't correct
2 Halted 0 ms 0 KB -