Submission #103427

#	Time	Username	Problem	Language	Result	Execution time	Memory
103427		Alliance	Art Exhibition (JOI18_art)	C++14	50 / 100	1050 ms	13492 KiB

art

// In the name of Allah. Ya ali!
#include<bits/stdc++.h>
#define double long double
typedef long long ll;
const ll MAX_N = 5e5+10;
const ll MOD = 1e9+7;
using namespace std;

pair<ll,ll> ab[MAX_N];
ll sum[MAX_N];
ll ans,n;

int main()
{
    ans = -1e18;
    cin >> n;
    for(int i = 1;i<=n;++i)
        cin >> ab[i].first >> ab[i].second;
    sort(ab+1,ab+n+1);
    for(int i = 1;i<=n;++i)
        sum[i] = sum[i-1]+ab[i].second;
    for(int i = 1;i<=n;++i)
    {
        for(int j = i;j<=n;++j)
        {
            ans = max(ans,sum[j]-sum[i-1]-ab[j].first+ab[i].first);
        }
    }
    cout << ans;
    return 0;
}

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