Submission #48457

#	Time	Username	Problem	Language	Result	Execution time	Memory
48457		arman_ferdous	Art Exhibition (JOI18_art)	C++17	10 / 100	9 ms	716 KiB

art

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

typedef long long ll;
const int N = 5e5+10;
pair<ll,ll> arr[N];

void brute(int n) {
	ll ans = 0;
	for(int mask = 1; mask < (1<<n); mask++) {
		ll sum = 0, mini = (ll)1e18, maxi = (ll)-1e18;
		for(int i = 0; i < n; i++) 
			if(mask>>i&1) {
				sum += arr[i].second;
				mini = min(mini, arr[i].first);
				maxi = max(maxi, arr[i].first);
			}
		ans = max(ans, sum - maxi + mini);
	}
	cout << endl << ans << endl;
}

int main() {
	int n;
	scanf("%d", &n);
	for(int i = 0; i < n; i++)
		scanf("%lld %lld", &arr[i].first, &arr[i].second);
	/*
	sort(arr,arr+n);
	ll ans = 0, sum = 0;
	for(int i = 0; i < n; i++) {
		sum += arr[i].second;
		ans = max(ans, sum - arr[i].first + arr[0].first);
	}
	printf("%lld", ans);*/
	brute(n);
	return 0;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
art.cpp:27:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld", &arr[i].first, &arr[i].second);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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