oj.uz

Submission #330325

# Submission time Handle Problem Language Result Execution time Memory
330325 2020-11-24T19:24:03 Z Sho10 Tents (JOI18_tents) C++14
100 / 100
 78 ms 70892 KB 
#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho10
#define ll long long
#define double long double
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define all(a) (a).begin(), (a).end()
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define pi pair
#define rc(s) return cout<<s,0
#define endl '\n'
#define mod (10*10*10*10*10*10*10*10*10+7)
#define PI 3.14159265359
#define MAXN 100005
#define INF 1000000005
#define LINF 1000000000000000005ll
#define CODE_START  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
ll n,m,dp[3005][3005];
int32_t main(){
CODE_START;
cin>>n>>m;
for(ll i=0;i<=n;i++)
{
    for(ll j=0;j<=m;j++)
        dp[i][j]=1;
}
for(ll i=1;i<=n;i++)
{
    for(ll j=1;j<=m;j++)
    {
        dp[i][j]=dp[i-1][j];
        if(j>=2){
            dp[i][j]+=dp[i-1][j-2]*j*(j-1)/2;
        }
        if(i>=2){
            dp[i][j]+=dp[i-2][j-1]*j*(i-1);
        }
        dp[i][j]+=4*j*dp[i-1][j-1];
        dp[i][j]%=mod;
    }
}
cout<<dp[n][m]-1<<endl;
}

Subtask #1
48.0 / 48.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 1132 KB Output is correct
5 Correct 1 ms 748 KB Output is correct
6 Correct 1 ms 1388 KB Output is correct
7 Correct 1 ms 876 KB Output is correct
8 Correct 2 ms 1516 KB Output is correct
9 Correct 1 ms 876 KB Output is correct
10 Correct 1 ms 1772 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 2 ms 2284 KB Output is correct

Subtask #2
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 1132 KB Output is correct
5 Correct 1 ms 748 KB Output is correct
6 Correct 1 ms 1388 KB Output is correct
7 Correct 1 ms 876 KB Output is correct
8 Correct 2 ms 1516 KB Output is correct
9 Correct 1 ms 876 KB Output is correct
10 Correct 1 ms 1772 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 2 ms 2284 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 6 ms 9708 KB Output is correct
15 Correct 61 ms 55276 KB Output is correct
16 Correct 5 ms 4076 KB Output is correct
17 Correct 12 ms 12908 KB Output is correct
18 Correct 16 ms 17132 KB Output is correct
19 Correct 57 ms 63084 KB Output is correct
20 Correct 55 ms 51000 KB Output is correct
21 Correct 37 ms 33900 KB Output is correct
22 Correct 34 ms 35564 KB Output is correct
23 Correct 22 ms 27116 KB Output is correct
24 Correct 78 ms 70892 KB Output is correct
25 Correct 58 ms 61292 KB Output is correct
26 Correct 69 ms 66816 KB Output is correct
27 Correct 70 ms 69100 KB Output is correct