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Submission #319531

# Submission time Handle Problem Language Result Execution time Memory
319531 2020-11-05T13:30:37 Z mosiashvililuka Asceticism (JOI18_asceticism) C++14
49 / 100
 55 ms 25068 KB 
#include<bits/stdc++.h>
using namespace std;
long long a,b,c,d,e,i,j,ii,jj,zx,xc,dp[3004][3004],mod=1000000007LL;
int main(){
	ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
	cin>>a>>b;
	dp[1][0]=1;
	for(i=1; i<a; i++){
		for(j=0; j<=min(b,i-1); j++){
			dp[i+1][j]+=dp[i][j]*(j+1);
			dp[i+1][j]%=mod;
			dp[i+1][j+1]+=dp[i][j]*(i-j);
			dp[i+1][j+1]%=mod;
		}
	}
	cout<<dp[a][b-1];
	return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 748 KB Output is correct
12 Correct 1 ms 1388 KB Output is correct
13 Correct 1 ms 1516 KB Output is correct
14 Correct 2 ms 1772 KB Output is correct
15 Correct 2 ms 1900 KB Output is correct
16 Correct 2 ms 1900 KB Output is correct
17 Correct 1 ms 1132 KB Output is correct
18 Correct 2 ms 1644 KB Output is correct
19 Correct 2 ms 1004 KB Output is correct
20 Correct 1 ms 512 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 748 KB Output is correct
12 Correct 1 ms 1388 KB Output is correct
13 Correct 1 ms 1516 KB Output is correct
14 Correct 2 ms 1772 KB Output is correct
15 Correct 2 ms 1900 KB Output is correct
16 Correct 2 ms 1900 KB Output is correct
17 Correct 1 ms 1132 KB Output is correct
18 Correct 2 ms 1644 KB Output is correct
19 Correct 2 ms 1004 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 4 ms 4332 KB Output is correct
22 Correct 3 ms 4332 KB Output is correct
23 Correct 10 ms 7148 KB Output is correct
24 Correct 11 ms 7276 KB Output is correct
25 Correct 13 ms 8288 KB Output is correct
26 Correct 13 ms 8332 KB Output is correct
27 Correct 12 ms 8300 KB Output is correct
28 Correct 6 ms 4204 KB Output is correct
29 Correct 1 ms 1252 KB Output is correct
30 Correct 12 ms 8172 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 748 KB Output is correct
12 Correct 1 ms 1388 KB Output is correct
13 Correct 1 ms 1516 KB Output is correct
14 Correct 2 ms 1772 KB Output is correct
15 Correct 2 ms 1900 KB Output is correct
16 Correct 2 ms 1900 KB Output is correct
17 Correct 1 ms 1132 KB Output is correct
18 Correct 2 ms 1644 KB Output is correct
19 Correct 2 ms 1004 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 4 ms 4332 KB Output is correct
22 Correct 3 ms 4332 KB Output is correct
23 Correct 10 ms 7148 KB Output is correct
24 Correct 11 ms 7276 KB Output is correct
25 Correct 13 ms 8288 KB Output is correct
26 Correct 13 ms 8332 KB Output is correct
27 Correct 12 ms 8300 KB Output is correct
28 Correct 6 ms 4204 KB Output is correct
29 Correct 1 ms 1252 KB Output is correct
30 Correct 12 ms 8172 KB Output is correct
31 Runtime error 55 ms 25068 KB Execution killed with signal 11 (could be triggered by violating memory limits)
32 Halted 0 ms 0 KB -