제출 #915468

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
915468		viwlesxq	Art Exhibition (JOI18_art)	C++17	100 / 100	159 ms	29116 KiB

art

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define all(x) x.begin(), x.end()
#define size(x) (int)x.size()

template<class S, class T>
bool chmin(S &a, const T &b) {
    return a > b && (a = b) == b;
}
template<class S, class T>
bool chmax(S &a, const T &b) {
    return a < b && (a = b) == b;
}
const int inf = 1e9 + 7;
const int INF = 1e18 + 7;
const int mod = 1e9 + 7;

signed main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    int n; cin >> n;
    int a[n], b[n];
    vector<pair<int, int>> v;
    for (int i = 0; i < n; ++i) {
        cin >> a[i] >> b[i];
        v.push_back({a[i], b[i]});
    }
    sort(all(v));
    for (int i = 0; i < n; ++i) a[i] = v[i].first, b[i] = v[i].second;
    int res = b[0], pref = b[0], min = -a[0];
    for (int i = 1; i < n; ++i) {
        chmin(min, pref - a[i]);
        pref += b[i];
        chmax(res, pref - min - a[i]);
    }
    cout << res;
} 

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