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답안 #822407

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
822407 2023-08-12T03:08:43 Z irmuun Tents (JOI18_tents) C++17
100 / 100
 152 ms 70792 KB 
#include<bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()

const ll mod=1e9+7;

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    ll h,w;
    cin>>h>>w;
    ll dp[h+1][w+1];
    for(ll i=0;i<=h;i++){
        for(ll j=0;j<=w;j++){
            if(i==0||j==0){
                dp[i][j]=1;
                continue;
            }
            dp[i][j]=(dp[i][j-1]+dp[i-1][j-1]*4*i)%mod;
            if(i>=2){
                dp[i][j]+=dp[i-2][j-1]*i*(i-1)/2;
                dp[i][j]%=mod;
            }
            if(j>=2){
                dp[i][j]+=dp[i-1][j-2]*i*(j-1);
                dp[i][j]%=mod;
            }
        }
    }
    cout<<(dp[h][w]-1+mod)%mod;
}

Subtask #1
48.0 / 48.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 340 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 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 5 ms 368 KB Output is correct
12 Correct 3 ms 980 KB Output is correct

Subtask #2
52.0 / 52.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 340 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 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 5 ms 368 KB Output is correct
12 Correct 3 ms 980 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 97 ms 43996 KB Output is correct
16 Correct 7 ms 3136 KB Output is correct
17 Correct 22 ms 10088 KB Output is correct
18 Correct 27 ms 12452 KB Output is correct
19 Correct 111 ms 51260 KB Output is correct
20 Correct 91 ms 41092 KB Output is correct
21 Correct 61 ms 27164 KB Output is correct
22 Correct 60 ms 26780 KB Output is correct
23 Correct 32 ms 14932 KB Output is correct
24 Correct 152 ms 70792 KB Output is correct
25 Correct 115 ms 52540 KB Output is correct
26 Correct 133 ms 60244 KB Output is correct
27 Correct 145 ms 68044 KB Output is correct