Submission #542054

#	Time	Username	Problem	Language	Result	Execution time	Memory
542054		lunchbox	Art Exhibition (JOI18_art)	C++17	0 / 100	1 ms	212 KiB

art

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

int main() {
	long long ans, mx;
	int n;
	scanf("%d", &n);
	vector<pair<long long, long long>> a(n);
	for (auto &[x, y] : a)
		scanf("%lld%lld", &x, &y);
	sort(a.begin(), a.end());
	for (int i = 0; i + 1 < n; i++)
		a[i + 1].second += a[i].second;
	ans = mx = 0;
	for (int i = 0; i < n; i++) {
		ans = max(ans, a[i].second - a[i].first + mx);
		mx = max(mx, a[i].first - (i == 0 ? 0 : a[i - 1].second));
	}
	printf("%lld\n", ans);
	return 0;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:7:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
art.cpp:10:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |   scanf("%lld%lld", &x, &y);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 50