Submission #862979

#	Time	Username	Problem	Language	Result	Execution time	Memory
862979		somethingnew	Bigger segments (IZhO19_segments)	C++17	37 / 100	1548 ms	5296 KiB

segments

//  ↘ ⬇ ⬇ ⬇ ⬇ ⬇ ↙
//  ➡ @roadfromroi ⬅
//  ↗ ⬆ ⬆ ⬆ ⬆ ⬆ ↖
#include <iostream>
#include "vector"
#include "algorithm"
#include "numeric"
#include "climits"
#include "iomanip"
#include "bitset"
#include "cmath"
#include "map"
#include "deque"
#include "array"
#include "set"
#define all(x) x.begin(), x.end()
using namespace std;
#define int long long
void upd(pair<int, int> &a, pair<int, int> b) {
    if (a.first < b.first)
        a = b;
    if (a.first == b.first)
        a = min(a, b);
}
void solve() {
    int n;
    cin >> n;
    vector<int> a(n);
    vector<int> prf(n + 1);
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
        prf[i + 1] = prf[i] + a[i];
    }
    vector<pair<int, int>> dp(n + 1, {-1e9, 0});
    dp[0] = {0, 0};
    set<array<int, 3>> st = {{0, 0,0}};
    for (int i = 1; i <= n; ++i) {
        //cout << i << endl;
        int vl = prf[i];
        for (auto j : st) {
            //cout << j[0] << ' ' << j[1] << ' ' << j[2] << '\n';
            if (j[0] <= vl)
                upd(dp[i], {j[1] + 1, vl - j[2]});
        }
       st.insert({dp[i].second + prf[i], dp[i].first, prf[i]});
    }
    cout << dp[n].first << '\n';
}
signed main() {
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int t = 1;
    while (t--) {
        solve();
    }
}

• Subtask 1: 13 / 13
• Subtask 2: 14 / 14
• Subtask 3: 10 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27