oj.uz

답안 #136500

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
136500 2019-07-25T11:29:10 Z Osama_Alkhodairy Candies (JOI18_candies) C++17
0 / 100
 7 ms 504 KB 
#include <bits/stdc++.h>
using namespace std;
#define finish(x) return cout << x << endl, 0
#define ll long long

int n;
vector <ll> a;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    a.resize(n);
    for(auto &i : a) cin >> i;
    set <int> alive;
    set <pair <ll, int> > s;
    for(int i = 0 ; i < n ; i++){
        alive.insert(i);
        s.insert(make_pair(a[i], i));
    }
    ll ans = 0;
    for(int itt = 0 ; itt < (n + 1) / 2 ; itt++){
        auto top = *--s.end();
        s.erase(--s.end());
        ans += top.first;
        cout << ans << endl;
        int pos = top.second;
        alive.erase(pos);
        a[pos] *= -1;
        auto it = alive.upper_bound(pos);
        if(it != alive.end()){
            a[pos] += a[*it];
            s.erase(make_pair(a[*it], *it));
            alive.erase(*it);
        } 
        it = alive.upper_bound(pos);
        if(it != alive.begin()){
            it--;
            a[pos] += a[*it];
            s.erase(make_pair(a[*it], *it));
            alive.erase(*it);
        }
        alive.insert(pos);
        s.insert(make_pair(a[pos], pos));
    }
}

Subtask #1
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 7 ms 504 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 92.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 7 ms 504 KB Output isn't correct
2 Halted 0 ms 0 KB -