Submission #746931

#	Time	Username	Problem	Language	Result	Execution time	Memory
746931		vjudge1	Calvinball championship (CEOI15_teams)	C++14	20 / 100	1071 ms	468 KiB

teams

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define int long long
#define endl '\n'
using namespace std;
using namespace __gnu_pbds;
using ordered_set = tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>;
// int SLV[10011][10011];
int slv(int a,int b){
    if(b==0)return 1;
    // if(SLV[a][b]!=-1)return SLV[a][b];
    return (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);
    // memset(SLV,-1,sizeof SLV);
    int n;
    cin>>n;
    int arr[n];
    for(auto &i:arr)cin>>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;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10