Submission #1077000

#	Time	Username	Problem	Language	Result	Execution time	Memory
1077000		HorizonWest	Meetings (IOI18_meetings)	C++17	0 / 100	5585 ms	1628 KiB

meetings

#include <iostream>
#include <complex>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <functional>
#include <bitset>
#include <queue>
#include <map>
#include <stack>
#include <cmath>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <vector>
//#include "meetings.h"
using namespace std;

#define endl '\n'
#define db double
#define ll long long
#define pb push_back
#define fs first
#define sd second
#define Mod long(1e9 + 7)
#define all(x) x.begin(), x.end()
#define unvisited long(-1)
#define Eps double(1e-9)
#define _for(i, n) for(int i = 0; i < (n); i++)
#define dbg(x) cout << #x ": " << x << endl;

const ll Max = 1e6 + 7, Inf = 1e17 + 7LL;

void clear_vec(vector <ll> &v){
    for(auto& u : v) u = 0;
}

vector<long long> minimum_costs(vector<int> H, vector<int> L, vector<int> R) 
{
    int n = H.size(), q = L.size();

    vector <ll> v(n); 

    auto F = [&](int l, int r) -> ll
    {
        priority_queue <ll> h; 
        clear_vec(v);

        ll sum = 0;
        while(!h.empty()){
            h.pop();
        }
     
        for(int i = l; i <= r; i++){
            h.push(-H[i]); sum = sum + ((ll) H[i]);
            while (!h.empty())
            {
                int x = abs(h.top()); 
                if(H[i] > x){
                    sum += abs(H[i] - x);
                    h.pop();
                } else break;
            }
            v[i] += sum;
        }   

        sum = 0;
        while(!h.empty()){
            h.pop();
        }
        
        for(int i = r; i >= l; i--){
            h.push(-H[i]); sum = sum + ((ll) H[i]);
            while (!h.empty())
            {
                int x = abs(h.top());
                if(H[i] > x){
                    sum += abs(H[i] - x);
                    h.pop();
                } else break;
            }
            v[i] += sum;
        }

        ll sol = Inf;
        for(int i = l; i <= r; i++){
            sol = min(sol, v[i] - H[i]);
        }

        return sol;
    };

    vector <ll> ans(q);

    for(int i = 0; i < q; i++){
        //ans[i] = St.query(L[i], R[i]);
        ans[i] = F(L[i], R[i]);
    }

    return ans;
}

• Subtask 1: 0 / 4
• Subtask 2: 0 / 15
• Subtask 3: 0 / 17
• Subtask 4: 0 / 24
• Subtask 5: 0 / 40