oj.uz

Submission #1109771

# Submission time Handle Problem Language Result Execution time Memory
1109771 2024-11-07T14:18:56 Z Warinchai Tents (JOI18_tents) C++14
100 / 100
 88 ms 70984 KB 
#include<bits/stdc++.h>
#define int long long
using namespace std;
int dp[3005][3005];
int md=1e9+7;
int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int h,w;cin>>h>>w;
    for(int i=0;i<=h;i++)dp[i][0]=1;
    for(int i=0;i<=w;i++)dp[0][i]=1;
    for(int i=1;i<=h;i++){
        for(int j=1;j<=w;j++){
            dp[i][j]=(dp[i][j]+dp[i-1][j-1]*j*4+dp[i-1][j])%md;
            if(j>1)dp[i][j]=(dp[i][j]+dp[i-1][j-2]*(j)*(j-1)/2)%md;
            if(i>1)dp[i][j]=(dp[i][j]+(i-1)*j*dp[i-2][j-1])%md;
        }
    }
    cout<<(dp[h][w]-1+md)%md<<"\n";
}
//ill finish later

Subtask #1
48.0 / 48.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 6480 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 6480 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 6480 KB Output is correct
9 Correct 1 ms 4432 KB Output is correct
10 Correct 2 ms 8528 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 3 ms 8720 KB Output is correct

Subtask #2
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 6480 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 6480 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 6480 KB Output is correct
9 Correct 1 ms 4432 KB Output is correct
10 Correct 2 ms 8528 KB Output is correct
11 Correct 1 ms 2384 KB Output is correct
12 Correct 3 ms 8720 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 7 ms 55888 KB Output is correct
15 Correct 55 ms 66128 KB Output is correct
16 Correct 5 ms 6736 KB Output is correct
17 Correct 15 ms 17024 KB Output is correct
18 Correct 17 ms 29264 KB Output is correct
19 Correct 66 ms 70224 KB Output is correct
20 Correct 51 ms 57936 KB Output is correct
21 Correct 34 ms 39504 KB Output is correct
22 Correct 37 ms 51792 KB Output is correct
23 Correct 23 ms 70396 KB Output is correct
24 Correct 88 ms 70984 KB Output is correct
25 Correct 65 ms 62032 KB Output is correct
26 Correct 74 ms 68176 KB Output is correct
27 Correct 86 ms 70224 KB Output is correct