Submission #419409

#	Time	Username	Problem	Language	Result	Execution time	Memory
419409		Trickster	Art Exhibition (JOI18_art)	C++14	0 / 100	0 ms	204 KiB

art

//Suleyman Atayew

#include <algorithm>
#include <iostream>
#include <string.h>
#include <stdio.h>
#include <vector>
#include <bitset>
#include <queue>
#include <cmath>
#include <map>
#include <set>
 
#define N 500010
#define ff first
#define ss second
#define pb push_back
#define ll long long
#define mod 1000000007
#define pii pair <ll, ll>
#define sz(a) (ll)(a.size())
ll bigmod(ll a, ll b) { if(b==0)return 1; ll ret = bigmod(a, b/2); return ret * ret % mod * (b%2 ? a : 1) % mod; }

using namespace std;

ll n;
pii p[N];

int main()
{
    ios::sync_with_stdio(false);
	cin.tie(0);

    cin >> n;

    ll sum = 0, ans = 0;
    for(ll i = 1; i <= n; i++)
        cin >> p[i].ff >> p[i].ss;

    sort(p+1, p+n+1);

    queue <ll> Q;
    for(ll i = 1; i <= n; i++) {
        sum = sum + p[i].ss - (i != 1 ? p[i].ff - p[i-1].ff : 0);

        while(!Q.empty() && sum < 0) {
            ll x = Q.front();
            sum = sum - p[x].ss + (p[x+1].ff - p[x].ff);
            Q.pop();
        }

        Q.push(i);

        ans = max(ans, sum);
    }

    cout << ans;
}

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