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Submission #56853

# Submission time Handle Problem Language Result Execution time Memory
56853 2018-07-12T21:33:05 Z ksun48 Asceticism (JOI18_asceticism) C++14
49 / 100
 14 ms 7800 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;

const LL MOD = 1000000007;

int main(){
	int n, k;
	cin >> n >> k;
	n--;
	k--;
	LL dp[n+1][n+1];
	for(LL i = 0; i <= n; i++){
		for(LL j = 0; j <= i; j++){
			dp[i][j] = 0;
			if(i == 0 && j == 0){
				dp[i][j] = 1;
			}
			if(i > 0){
				if(j > 0){
					dp[i][j] += dp[i-1][j-1] * (i+1-j);
				}
				if(j < i){
					dp[i][j] += dp[i-1][j] * (j+1);
				}
			}
			dp[i][j] %= MOD;
		}
	}
	cout << dp[n][k] << '\n';

}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 2 ms 484 KB Output is correct
3 Correct 2 ms 524 KB Output is correct
4 Correct 2 ms 672 KB Output is correct
5 Correct 2 ms 672 KB Output is correct
6 Correct 2 ms 756 KB Output is correct
7 Correct 2 ms 756 KB Output is correct
8 Correct 2 ms 756 KB Output is correct
9 Correct 2 ms 756 KB Output is correct
10 Correct 2 ms 756 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 2 ms 484 KB Output is correct
3 Correct 2 ms 524 KB Output is correct
4 Correct 2 ms 672 KB Output is correct
5 Correct 2 ms 672 KB Output is correct
6 Correct 2 ms 756 KB Output is correct
7 Correct 2 ms 756 KB Output is correct
8 Correct 2 ms 756 KB Output is correct
9 Correct 2 ms 756 KB Output is correct
10 Correct 2 ms 756 KB Output is correct
11 Correct 2 ms 788 KB Output is correct
12 Correct 2 ms 1560 KB Output is correct
13 Correct 2 ms 1560 KB Output is correct
14 Correct 2 ms 1560 KB Output is correct
15 Correct 3 ms 1560 KB Output is correct
16 Correct 3 ms 1560 KB Output is correct
17 Correct 3 ms 1560 KB Output is correct
18 Correct 2 ms 1560 KB Output is correct
19 Correct 2 ms 1560 KB Output is correct
20 Correct 2 ms 1560 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 2 ms 484 KB Output is correct
3 Correct 2 ms 524 KB Output is correct
4 Correct 2 ms 672 KB Output is correct
5 Correct 2 ms 672 KB Output is correct
6 Correct 2 ms 756 KB Output is correct
7 Correct 2 ms 756 KB Output is correct
8 Correct 2 ms 756 KB Output is correct
9 Correct 2 ms 756 KB Output is correct
10 Correct 2 ms 756 KB Output is correct
11 Correct 2 ms 788 KB Output is correct
12 Correct 2 ms 1560 KB Output is correct
13 Correct 2 ms 1560 KB Output is correct
14 Correct 2 ms 1560 KB Output is correct
15 Correct 3 ms 1560 KB Output is correct
16 Correct 3 ms 1560 KB Output is correct
17 Correct 3 ms 1560 KB Output is correct
18 Correct 2 ms 1560 KB Output is correct
19 Correct 2 ms 1560 KB Output is correct
20 Correct 2 ms 1560 KB Output is correct
21 Correct 8 ms 7800 KB Output is correct
22 Correct 8 ms 7800 KB Output is correct
23 Correct 9 ms 7800 KB Output is correct
24 Correct 9 ms 7800 KB Output is correct
25 Correct 12 ms 7800 KB Output is correct
26 Correct 11 ms 7800 KB Output is correct
27 Correct 14 ms 7800 KB Output is correct
28 Correct 7 ms 7800 KB Output is correct
29 Correct 3 ms 7800 KB Output is correct
30 Correct 11 ms 7800 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 2 ms 484 KB Output is correct
3 Correct 2 ms 524 KB Output is correct
4 Correct 2 ms 672 KB Output is correct
5 Correct 2 ms 672 KB Output is correct
6 Correct 2 ms 756 KB Output is correct
7 Correct 2 ms 756 KB Output is correct
8 Correct 2 ms 756 KB Output is correct
9 Correct 2 ms 756 KB Output is correct
10 Correct 2 ms 756 KB Output is correct
11 Correct 2 ms 788 KB Output is correct
12 Correct 2 ms 1560 KB Output is correct
13 Correct 2 ms 1560 KB Output is correct
14 Correct 2 ms 1560 KB Output is correct
15 Correct 3 ms 1560 KB Output is correct
16 Correct 3 ms 1560 KB Output is correct
17 Correct 3 ms 1560 KB Output is correct
18 Correct 2 ms 1560 KB Output is correct
19 Correct 2 ms 1560 KB Output is correct
20 Correct 2 ms 1560 KB Output is correct
21 Correct 8 ms 7800 KB Output is correct
22 Correct 8 ms 7800 KB Output is correct
23 Correct 9 ms 7800 KB Output is correct
24 Correct 9 ms 7800 KB Output is correct
25 Correct 12 ms 7800 KB Output is correct
26 Correct 11 ms 7800 KB Output is correct
27 Correct 14 ms 7800 KB Output is correct
28 Correct 7 ms 7800 KB Output is correct
29 Correct 3 ms 7800 KB Output is correct
30 Correct 11 ms 7800 KB Output is correct
31 Runtime error 3 ms 7800 KB Execution killed with signal 11 (could be triggered by violating memory limits)
32 Halted 0 ms 0 KB -