제출 #1309542

#제출 시각아이디문제언어결과실행 시간메모리
1309542husseinjuandaArt Exhibition (JOI18_art)C++20
100 / 100
127 ms8260 KiB
#include <bits/stdc++.h> using namespace std; #define int long long signed main(){ ios_base::sync_with_stdio(0); cin.tie(0); int n; cin >> n; vector<pair<int, int>> a(n); for(int i = 0; i < n; i++){ cin >> a[i].first >> a[i].second; } sort(a.begin(), a.end()); int sum = -1e18; int mx = 0; for(int i = n-1; i >= 0; i--){ sum = max(sum+a[i].second, a[i].second - a[i].first); mx = max(mx, sum + a[i].first); } cout << mx << "\n"; return 0; }
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