Submission #486856

#	Time	Username	Problem	Language	Result	Execution time	Memory
486856		TypeYippie	Art Exhibition (JOI18_art)	C++14	100 / 100	195 ms	28908 KiB

art

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

const int N = 5e5+5;
int n;
pair<long long, long long> art[N];
long long pref[N];

int main(){
	scanf("%d", &n);
	for(int i = 1; i <= n; i++){
		scanf("%lld%lld", &art[i].first, &art[i].second);
	}
	sort(art+1, art+n+1);
	pref[0] = 0;
	for(int i = 1; i <= n; i++){
		pref[i] = pref[i-1]+art[i].second;
	}
	priority_queue<long long> pq;
	long long ans = 0;
	for(int i = n; i > 0; i--){
		pq.push(pref[i]-art[i].first);
		ans = max(ans, (pq.top()-pref[i-1])+art[i].first);
	}
	printf("%lld\n", ans);

	return 0;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
art.cpp:12:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |   scanf("%lld%lld", &art[i].first, &art[i].second);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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