Submission #996534

#	Time	Username	Problem	Language	Result	Execution time	Memory
996534		aykhn	Robots (IOI13_robots)	C++17	100 / 100	1314 ms	20428 KiB

robots

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

using namespace std;

int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) 
{
    sort(X, X + A), sort(Y, Y + B);
    vector<int> o(T, 0);
    iota(o.begin(), o.end(), 0);
    sort(o.begin(), o.end(), [&](const int &a, const int &b)
    {
        return W[a] < W[b];
    });
    int l = 1, r = T + 1;
    priority_queue<int> ms;
    while (l < r)
    {
        while (!ms.empty()) ms.pop();
        int mid = (l + r) >> 1;
        int j = 0;
        for (int i = 0; i < A; i++)
        {
            while (j < T && W[o[j]] < X[i]) ms.push(S[o[j]]), j++;
            int c = mid;
            while (c-- && !ms.empty()) ms.pop();
        }
        while (j < T) ms.push(S[o[j]]), j++;
        for (int i = B - 1; i >= 0; i--)
        {
            int c = mid;
            while (c-- && !ms.empty() && ms.top() < Y[i]) ms.pop();
        }
        if (ms.empty()) r = mid;
        else l = mid + 1;
    }
    return (l == T + 1 ? -1 : l);
}

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