Submission #206751

#	Time	Username	Problem	Language	Result	Execution time	Memory
206751		pavement	Art Exhibition (JOI18_art)	C++17	100 / 100	251 ms	24840 KiB

art

#include <bits/stdc++.h>
using namespace std;
#define int long long

int N, C, P[500005];
pair<int, int> T[500005];

main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> N;
	for (int i = 1; i <= N; i++) cin >> T[i].first >> T[i].second;
	sort(T + 1, T + 1 + N);
	for (int i = 1; i <= N; i++) P[i] = P[i - 1] + T[i].second;
	for (int i = 1, M = LLONG_MIN; i <= N; i++) {
		M = max(M, -P[i - 1] + T[i].first);
		C = max(C, M + P[i] - T[i].first);
	}
	cout << C << '\n';
}

Compilation message (stderr)

art.cpp:8:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^

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