제출 #536766

#제출 시각아이디문제언어결과실행 시간메모리
536766theysoldtheworldArt Exhibition (JOI18_art)C++14
0 / 100
1 ms212 KiB
#include <bits/stdc++.h> using namespace std; const long long inf = (long long)1e18; int main() { ios::sync_with_stdio(false); cin.tie(0); int n; cin >> n; vector<pair<long long , long long>> a(n); for (int i = 0 ; i < n ; i++) { cin >> a[i].first >> a[i].second; } sort(a.rbegin() , a.rend()); vector<long long> dp(n) , pref(n); for (int i = 0 ; i < n ; i++) { if (i == 0) pref[i] = a[i].second; else pref[i] = pref[i - 1] + a[i].second; } for (int i = 0 ; i < n ; i++) { for (int j = 0 ; j < i ; j++) { dp[i] = max(dp[i] , pref[i] - (j > 0 ? pref[j - 1] : 0) - a[j].first + a[i].first); } } long long res = *max_element(dp.begin() , dp.end()); cout << res << '\n'; return 0; }
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