oj.uz

Submission #226204

# Submission time Handle Problem Language Result Execution time Memory
226204 2020-04-22T20:55:11 Z DS007 Asceticism (JOI18_asceticism) C++14
49 / 100
 600 ms 80904 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long

const int mod = 1e9 + 7;
map<pair<int, int>, int> dp;
int n, k;

int calc(int i, int j) {
    if (i < j || j == 0)
        return 0;
    else if (dp[{i, j}])
        return dp[{i, j}];
    else if (j > i - j + 1)
        return calc(i, i - j + 1);
    else if (i == j)
        return dp[{i, j}] = 1;
    return dp[{i, j}] = (j * calc(i - 1, j) + (i - j + 1) * calc(i - 1, j - 1)) % mod;
}

void solveTestCase() {
    cin >> n >> k;
    cout << calc(n, k);
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int test = 1;
    // cin >> test;
    for (int i = 1; i <= test; i++)
        solveTestCase();
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 11 ms 1280 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 6 ms 640 KB Output is correct
18 Correct 9 ms 1076 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 11 ms 1280 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 6 ms 640 KB Output is correct
18 Correct 9 ms 1076 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 512 KB Output is correct
22 Correct 5 ms 512 KB Output is correct
23 Correct 89 ms 9592 KB Output is correct
24 Correct 75 ms 8440 KB Output is correct
25 Correct 25 ms 3320 KB Output is correct
26 Correct 5 ms 640 KB Output is correct
27 Correct 5 ms 512 KB Output is correct
28 Correct 21 ms 2560 KB Output is correct
29 Correct 7 ms 768 KB Output is correct
30 Correct 17 ms 2304 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 11 ms 1280 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 6 ms 640 KB Output is correct
18 Correct 9 ms 1076 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 512 KB Output is correct
22 Correct 5 ms 512 KB Output is correct
23 Correct 89 ms 9592 KB Output is correct
24 Correct 75 ms 8440 KB Output is correct
25 Correct 25 ms 3320 KB Output is correct
26 Correct 5 ms 640 KB Output is correct
27 Correct 5 ms 512 KB Output is correct
28 Correct 21 ms 2560 KB Output is correct
29 Correct 7 ms 768 KB Output is correct
30 Correct 17 ms 2304 KB Output is correct
31 Correct 48 ms 16072 KB Output is correct
32 Correct 308 ms 41080 KB Output is correct
33 Execution timed out 1103 ms 80904 KB Time limit exceeded
34 Halted 0 ms 0 KB -