Submission #598708

#	Time	Username	Problem	Language	Result	Execution time	Memory
598708		Bench0310	Robots (IOI13_robots)	C++17	100 / 100	1567 ms	24376 KiB

robots

#include <bits/stdc++.h>
#include "robots.h"

using namespace std;
typedef long long ll;

int putaway(int A,int B,int n,int limX[],int limY[],int X[],int Y[])
{
    sort(limX,limX+A);
    sort(limY,limY+B);
    vector<array<int,2>> v(n);
    for(int i=0;i<n;i++) v[i]={X[i],Y[i]};
    sort(v.begin(),v.end());
    int l=0,r=n+1;
    while(l<r-1)
    {
        int cnt=(l+r)/2;
        priority_queue<int> q;
        int idx=0;
        for(int i=0;i<A;i++)
        {
            while(idx<n&&v[idx][0]<limX[i]) q.push(v[idx++][1]);
            for(int j=0;j<cnt&&!q.empty();j++) q.pop();
        }
        while(idx<n) q.push(v[idx++][1]);
        for(int i=B-1;i>=0;i--)
        {
            int c=cnt;
            while(c>0&&!q.empty()&&q.top()<limY[i])
            {
                q.pop();
                c--;
            }
        }
        if(q.empty()) r=cnt;
        else l=cnt;
    }
    return (r<=n?r:-1);
}

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