Submission #712194

#	Time	Username	Problem	Language	Result	Execution time	Memory
712194		dozer	Art Exhibition (JOI18_art)	C++14	0 / 100	1 ms	360 KiB

art

#include <bits/stdc++.h>
using namespace std;
#define sp " "
#define endl "\n";
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define pb push_back
#define pii pair<int, int>
#define st first
#define nd second
#define N 200005
#define int long long

const int modulo = 1e9 + 7;

int pre[N], maks[N];
pii arr[N];

int32_t main()
{
	fastio();

	int n;
	cin>>n;
	for (int i = 1; i <= n; i++)
		cin>>arr[i].st>>arr[i].nd;

	sort(arr + 1, arr + 1 + n);
	for (int i = 1; i <= n; i++)
		pre[i] = pre[i - 1] + arr[i].nd;

	for (int i = n; i >= 1; i--)
		maks[i] = max(maks[i + 1], pre[i] - arr[i].st);

	int ans = 0;
	for (int i = 1; i <= n; i++)
	{
		ans = max(ans, maks[i] - pre[i - 1] + arr[i].st);
	}
	cout<<ans<<endl;

	cerr << "time taken : " << (float)clock() / CLOCKS_PER_SEC << " seconds\n";
}

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