Submission #770448

#	Time	Username	Problem	Language	Result	Execution time	Memory
770448		Blagoj	Divide and conquer (IZhO14_divide)	C++17	17 / 100	1 ms	332 KiB

divide

#include <bits/stdc++.h>

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

#pragma GCC optimize("Ofast,unroll-loops")

using namespace std;

#define endl '\n'
#define ll long long
#define all(x) x.begin(), x.end()

struct T {
    ll pos, gold, cost;
};

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin >> n;
    T a[n];
    ll ans = 0;
    for (int i = 0; i < n; i++) {
        cin >> a[i].pos >> a[i].gold >> a[i].cost;
        ans = max(ans, a[i].gold);
    }
    ll l = 0, sumCost = a[0].cost, sumGold = a[0].gold;
    for (int r = 1; r < n; r++) {
        sumCost += a[r].cost;
        sumGold += a[r].gold;
        while (sumCost < a[r].pos - a[l].pos) {
            sumCost -= a[l].cost;
            sumGold -= a[l].gold;
            l++;
        }
        ans = max(ans, sumGold);
    }
    cout << ans;
}

• Subtask 1: 17 / 17
• Subtask 2: 0 / 31
• Subtask 3: 0 / 52