제출 #945185

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
945185		fzyzzz_z	Bigger segments (IZhO19_segments)	C++17	0 / 100	0 ms	500 KiB

segments

#include <bits/stdc++.h>
using namespace std; 

using ll = long long; 

const ll inf = 1e18 + 50;


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    cin >> n; 
    vector<ll> a(n); 
    for (auto & x: a) cin >> x; 

    vector<ll> c; 
    ll last = 1, cur = 0, ans = 0; 
    for (int i = 0; i < n; ++i) {
        cur += a[i]; 
        c.push_back(a[i]); 
        if (cur >= last) {
            reverse(c.begin(), c.end()); 
            while (c.size() && c.back() * 2LL + last <= cur) {
                last += c.back(); 
                cur -= c.back(); 
                c.pop_back(); 
            }
            last = cur; 
            c.clear(); 
            cur = 0; 
            ans++; 
        } 
    }

    cout << ans << '\n';

    return 0;
}

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• Subtask 2: 0 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27