oj.uz

답안 #357893

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
357893 2021-01-24T23:19:08 Z beepbeepsheep Akcija (COCI15_akcija) C++17
80 / 80
 18 ms 1644 KB 
#include <bits/stdc++.h>

using namespace std;
#define ll long long

const ll bignum=1e17;
const int inf= 2e9;
const int mod= 1e9+7;


int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll n;
    cin>>n;
    ll arr[n];
    for (int i=0;i<n;i++){
        cin>>arr[i];
    }
    sort(arr,arr+n);
    reverse(arr,arr+n);
    ll ans=0;
    for (int i=0;i<n;i++){
        if (!((i+1)%3))continue;
        ans+=arr[i];

    }
    cout<<ans;
    return 0;
}

Subtask #1
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 14 ms 1644 KB Output is correct
7 Correct 10 ms 1516 KB Output is correct
8 Correct 10 ms 1516 KB Output is correct
9 Correct 18 ms 1644 KB Output is correct
10 Correct 18 ms 1644 KB Output is correct