Submission #794565

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
794565	2023-07-26T15:48:10 Z	Sandarach151	Tents (JOI18_tents)	C++17	100 / 100	56 ms	70688 KB

tents

#include<bits/stdc++.h>
using namespace std;

const long long MODD = 1e9+7;

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	long long h, w;
	cin >> h >> w;
	long long ans[h+1][w+1];
	for(long long i=0; i<=h; i++){
		ans[i][0]=1;
	}
	for(long long i=0; i<=w; i++){
		ans[0][i]=1;
	}
	for(long long i=1; i<=h; i++){
		ans[i][1]=i*4+i*(i-1)/2+1;
	}
	for(long long i=1; i<=w; i++){
		ans[1][i]=i*4+i*(i-1)/2+1;
	}
	for(long long i=2; i<=h; i++){
		for(long long j=2; j<=w; j++){
			long long caseEWN = 3*j*ans[i-1][j-1];
			long long caseSs = j*ans[i-1][j-1];
			long long caseSd = j*(i-1)*ans[i-2][j-1];
			ans[i][j]=ans[i-1][j]+j*(j-1)/2*ans[i-1][j-2]+caseEWN+caseSs+caseSd;
			ans[i][j] %= MODD;
		}
	}
	cout << ans[h][w]-1 << '\n';
	return 0;
}

Subtask #1

48.0 / 48.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	324 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	324 KB	Output is correct
6	Correct	1 ms	468 KB	Output is correct
7	Correct	1 ms	468 KB	Output is correct
8	Correct	1 ms	328 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	576 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	980 KB	Output is correct

Subtask #2

52.0 / 52.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	324 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	324 KB	Output is correct
6	Correct	1 ms	468 KB	Output is correct
7	Correct	1 ms	468 KB	Output is correct
8	Correct	1 ms	328 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	576 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	980 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	33 ms	44032 KB	Output is correct
16	Correct	3 ms	3028 KB	Output is correct
17	Correct	9 ms	10068 KB	Output is correct
18	Correct	10 ms	12372 KB	Output is correct
19	Correct	39 ms	51232 KB	Output is correct
20	Correct	34 ms	41052 KB	Output is correct
21	Correct	18 ms	27068 KB	Output is correct
22	Correct	18 ms	26740 KB	Output is correct
23	Correct	13 ms	14972 KB	Output is correct
24	Correct	56 ms	70688 KB	Output is correct
25	Correct	40 ms	52556 KB	Output is correct
26	Correct	42 ms	60184 KB	Output is correct
27	Correct	53 ms	68040 KB	Output is correct