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답안 #998391

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
998391 2024-06-13T19:51:16 Z ag_1204 Tents (JOI18_tents) C++17
100 / 100
 73 ms 70828 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long int

int main(){
    ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    ll mod=1e9+7;
    ll h,w; cin>>h>>w;
    ll grid[h+1][w+1];
    for (ll i=0;i<=h;i++) {
        for (ll j=0;j<=w;j++) {
            if (i==0 || j==0) {
                grid[i][j]=1;
            } else {
                grid[i][j]=0;
            }
        }
    }
    for (ll i=1;i<=h;i++) {
        for (ll j=1;j<=w;j++) {
            grid[i][j]=grid[i-1][j];
    		if (j>1) {
    		    ll k1=j*(j-1);
    		    k1/=2;
    		    k1*=grid[i-1][j-2];
    		    grid[i][j]+=k1;
    		}
    		if (i>1) {
			    ll k2=j*(i-1);
			    k2*=grid[i-2][j-1];
			    grid[i][j]+=k2;
			}
    		ll k=4*j;
    		k*=grid[i-1][j-1];
			grid[i][j]+=k;
			grid[i][j]%=mod;
        }
    }
    grid[h][w]--;
    cout<<grid[h][w]<<endl;
	return 0;
}

Subtask #1
48.0 / 48.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 460 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct

Subtask #2
52.0 / 52.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 460 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 604 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 1116 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 41 ms 44124 KB Output is correct
16 Correct 3 ms 3164 KB Output is correct
17 Correct 10 ms 10168 KB Output is correct
18 Correct 11 ms 12488 KB Output is correct
19 Correct 47 ms 51288 KB Output is correct
20 Correct 42 ms 41048 KB Output is correct
21 Correct 25 ms 27224 KB Output is correct
22 Correct 29 ms 26768 KB Output is correct
23 Correct 15 ms 14940 KB Output is correct
24 Correct 73 ms 70828 KB Output is correct
25 Correct 48 ms 52560 KB Output is correct
26 Correct 54 ms 60380 KB Output is correct
27 Correct 68 ms 68176 KB Output is correct