Submission #993572

#	Time	Username	Problem	Language	Result	Execution time	Memory
993572		MuntherCarrot	Robots (IOI13_robots)	C++14	53 / 100	1279 ms	12888 KiB

robots

//#pragma GCC optimize("Ofast,O3,unroll-loops")
//#pragma GCC target("avx2,avx,sse3,sse4")
#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[]) {
    if (A > B) {
        swap(A, B);
        swap(X, Y);
        swap(W, S);
    }
    sort(X, X+A);
    sort(Y, Y+B);
    vector<pair<int, int>> v;
    for (int i = 0; i < T; i++)
        v.push_back({W[i], S[i]});
    sort(v.begin(), v.end());
    for (int i = 0; i < T; i++) {
        W[i] = v[i].first, S[i] = v[i].second;
    }
 
    int l = 1, r = T, ans = -1;
    while (l <= r) {
        const int mid = (l+r)/2;
        bool ok = true;
 
        int idx = 0;
        priority_queue<int> pq;
        for (int i = 0; idx < T && i < A; i++) {
            while (idx < T && W[idx] < X[i]) {
                pq.push(S[idx]);
                idx++;
            }
            for (int j = 0; pq.size() && j < mid; j++)
                pq.pop();
        }
        while (idx < T) {
            pq.push(S[idx]);
            idx++;
        }
        
        for (int i = B-1; ok && pq.size() && i >= 0; i--) {
            for (int j = 0; ok && pq.size() && j < mid; j++) {
                if (pq.top() >= Y[i]) {
                    ok = false;
                    break;
                }
                pq.pop();
            }
        }
 
        if (pq.empty())
            r = mid - 1, ans = mid;
        else
            l = mid+1;
    }
    return ans; 
}

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 25 / 25
• Subtask 4: 0 / 37
• Subtask 5: 0 / 10