제출 #1106745

#제출 시각아이디문제언어결과실행 시간메모리
1106745vjudge1Art Exhibition (JOI18_art)C++17
0 / 100
2 ms8784 KiB
#include <bits/stdc++.h> using namespace std; #define int long long const int N = 500'000 + 10; int n; pair<int, int> art[N]; int f[N][2]; int32_t main() { cin.tie(0)->sync_with_stdio(0); cin >> n; for (int i = 1; i <= n; ++i) cin >> art[i].first >> art[i].second; sort(art + 1, art + n + 1); memset(f, -14, sizeof f); for (int i = 1; i <= n; ++i) { const auto& [a, b] = art[i]; f[i][0] = max(f[i - 1][0] + b, b + a); f[i][1] = max(f[i - 1][1], f[i - 1][0] + b - a); } cout << f[n][1] << "\n"; }
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