Submission #1036867

#	Time	Username	Problem	Language	Result	Execution time	Memory
1036867		clementine	Robots (IOI13_robots)	C++17	100 / 100	1295 ms	24852 KiB

robots

#include "robots.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) 
{
    vector<int> a(X, X+A), b(Y, Y+B);
    vector<pair<int, int>> t(T);
    for(int i = 0; i <T; i ++) { t[i] = {W[i], S[i]};}

    sort(a.begin(), a.end());
    sort(b.begin(), b.end());
    sort(t.begin(), t.end());

    int l = 1;
    int r = T+1;
    
    while(l <r)
    {
        int mid = (l + r)/2;
        //cout << l << " " << r << " " << '\n';
        priority_queue<int> taken;
        int toyid = 0;
        for(int aid = 0; aid <A; aid ++)
        {
            while(t[toyid].first < a[aid] && toyid < T)
            {
                taken.push(t[toyid].second);
                toyid ++;
            }
            for(int i = 0; i < mid && !taken.empty(); i ++)
            {
                taken.pop();
            }
        }
       
        for(; toyid < T; toyid ++)
        {
            taken.push(t[toyid].second);
        }

        for(int i = B-1; i >=0 &&!taken.empty(); i --)
        {
            for(int j = mid-1; j >= 0 && !taken.empty(); j --)
            {
                if(taken.top() >= b[i])
                {
                    break;
                }
                else {taken.pop();}
            }
        }

        if(taken.empty())
        {
            r = mid;
        }
        else { l = mid + 1;}

    }

    if(l == T+1)
    {
        return -1;
    }
    else
    {
        return l;
    }


}

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 25 / 25
• Subtask 4: 37 / 37
• Subtask 5: 10 / 10