Submission #715760

#	Time	Username	Problem	Language	Result	Execution time	Memory
715760		ovidiush11	Art Exhibition (JOI18_art)	C++14	0 / 100	0 ms	212 KiB

art

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

#define ll long long

int main()
{
    ll n;
    cin>>n;
    vector<pair<ll,ll>> a(n);
    for(ll i = 0;i < n;i++)cin>>a[i].first>>a[i].second;
    sort(a.begin(),a.end());
    a.push_back({1e15+1,0});
    vector<pair<ll,ll>> v;
    for(ll i = 0;i < n;i++)
    {
        if(a[i].first == a[i+1].first)a[i+1].second += a[i].second;
        else v.push_back(a[i]);
    }
    n = v.size();
    ll mx = v[0].second,x = mx,pos = 0;
    for(ll i = 1;i < n;i++)
    {
        x += v[i].second - (v[i].first - v[i-1].first);
        if(x >= mx)
        {
            mx = x;
            pos = i;
        }
    }
    ll ans = mx;
    for(ll i = 1;i < pos;i++)
    {
        mx -= v[i-1].second;
        mx += v[i].first - v[i-1].first;
        ans = max(ans,mx);
    }
    cout<<max(ans,v[pos].second);
    return 0;
}

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