제출 #1303724

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1303724		JahonaliX	Art Exhibition (JOI18_art)	C++20	100 / 100	142 ms	10236 KiB

art

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

int main() {
#ifdef JahonaliX
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n;
    cin >> n;
    vector<ll> a(n), b(n);
    ll s, ans = 0;
    for (int i = 0; i < n; ++i) cin >> a[i] >> b[i];
    vector<int> o(n);
    iota(o.begin(), o.end(), 0);
    sort(o.begin(), o.end(), [&] (int i, int j) {
        if (a[i] == a[j]) return b[i] > b[j];
        return a[i] < a[j];
    });
    s = a[o[0]]; 
    for (int i : o) {
        s += b[i];
        s = max(s, b[i] + a[i]);
        ans = max(ans, s - a[i]);
    }
    cout << ans;
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50