Submission #1088692

#	Time	Username	Problem	Language	Result	Execution time	Memory
1088692		VMaksimoski008	Robots (IOI13_robots)	C++17	76 / 100	3024 ms	18408 KiB

robots

#include "robots.h"
#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,bmi,bmi2,lzcnt,popcnt")

int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
    vector<array<int, 3> > v;
    for(int i=0; i<T; i++) v.push_back({ W[i], S[i], 0 });

    sort(X, X + A);
    sort(Y, Y + B);

    int l=1, r=T, ans=-1;
    while(l <= r) {
        int mid = (l + r) / 2;
        bool ok = 1;

        for(int i=0; i<T; i++) v[i][2] = 0;
        sort(v.begin(), v.end());
        priority_queue<pii> pq;

        int j = 0;
        for(int i=0; i<A; i++) {
            while(j < T && v[j][0] < X[i]) pq.push({ v[j][1], j }), j++;
            for(int k=0; k<mid&&!pq.empty(); k++) {
                v[pq.top().second][2] = 1;
                pq.pop();
            }
        }

        vector<int> vec;
        sort(v.begin(), v.end(), [&](array<int, 3> &a, array<int, 3> &b) {
            return a[1] < b[1];
        });

        j = 0;
        for(int i=0; i<B; i++) {
            while(j < T && v[j][1] < Y[i]) {
                if(v[j][2] == 0) vec.push_back(j);
                j++;
            }

            for(int k=0; k<mid&&!vec.empty(); k++) {
                v[vec.back()][2] = 1;
                vec.pop_back();
            }
        }

        for(int i=0; i<T&&ok; i++) if(v[i][2] == 0) ok = 0;
        if(ok) ans = mid, r = mid - 1;
        else l = mid + 1;
    }

    return ans;
}

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