oj.uz

Submission #746925

# Submission time Handle Problem Language Result Execution time Memory
746925 2023-05-23T08:51:21 Z vjudge1 Calvinball championship (CEOI15_teams) C++14
0 / 100
 38 ms 65536 KB 
#include <bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
int SLV[10011][10011];
int arr[10011];
int slv(int a,int b){
    if(b==0)return 1;
    if(SLV[a][b]!=-1)return SLV[a][b];
    return SLV[a][b]=(slv(a+1,b-1)+slv(a,b-1)*a)%1000000007;
}
signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t=1;
    // t=INT_MAX;
    while(t--){
        memset(SLV,-1,sizeof SLV);
        int n=5;
        cin>>n;
        for(int a=n;a>=1;a--){
            for(int b=0;b<=n;b++){
                if(b==0)SLV[a][b]=1;
                else SLV[a][b]=(SLV[a+1][b-1]+SLV[a][b-1]*a)%1000000007;
            }
        }
        for(int i=0;i<n;i++)cin>>arr[i];
        int ans=1;
        int mx=0;
        for(int i=0;i<n;i++){
            for(int w=1;w<arr[i];w++)ans+=SLV[max(mx,w)][n-i-1];
            mx=max(mx,arr[i]);
            ans%=1000000007;
        }
        cout<<ans<<endl;
    }
}
/*
1 1 1 1
1 1 1 2
1 1 2 1
1 1 2 2
1 1 2 3
1 2 1 1
1 2 1 2
1 2 1 3
1 2 2 1
1 2 2 2
1 2 2 3
1 2 3 1
1 2 3 2
1 2 3 3
1 2 3 4
*/

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 30 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 32 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 38 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 33 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 34 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 31 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 32 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 29 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 31 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 36 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -