Submission #42269

#	Time	Username	Problem	Language	Result	Execution time	Memory
42269		RezwanArefin01	Art Exhibition (JOI18_art)	C++14	0 / 100	1 ms	248 KiB

art

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

typedef long long ll;
typedef pair<int, int> ii; 

const int maxn = 5e5 + 10;
struct lol {ll a, b;} art[maxn];

int main(int argc, char const *argv[]) {
#ifdef LOCAL_TESTING
	freopen("in", "r", stdin);
#endif
	int n; cin >> n;
	for(int i = 1; i <= n; i++) 
		cin >> art[i].a >> art[i].b; 
	art[0].a = art[0].b = 0;
	sort(art, art + n + 1, [](lol &a, lol &b) { return a.a < b.a; });

	for(int i = 1; i <= n; i++) 
		art[i].b += art[i - 1].b;

	ll Max = 0, add = 0;
	for(int i = 1; i <= n; i++) {
/*		b[i] - b[j - 1] - a[i] + a[j]; 
		=> a[j] - b[j - 1] + b[i] - a[i];*/

		Max = max(Max, art[i].b - art[i].a + add);
		add = max(add, art[i].a - art[i - 1].b);
	}
	cout << Max << endl;
}

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