Submission #746893

#	Time	Username	Problem	Language	Result	Execution time	Memory
746893		vjudge1	Calvinball championship (CEOI15_teams)	C++17	10 / 100	1 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>;
signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    int arr[n];
    for(auto &i:arr)cin>>i;
    int ans=1;
    int pw[n+1];
    pw[0]=1;
    for(int i=1;i<=n;i++)pw[i]=(pw[i-1]*2)%1000000007;
    for(int i=0;i<n;i++){
        ans+=(arr[i]-1)*pw[n-i-1];
        ans%=1000000007;
    }
    cout<<ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 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