Submission #578973

#	Time	Username	Problem	Language	Result	Execution time	Memory
578973		Mazaalai	Robots (IOI13_robots)	C++17	53 / 100	1913 ms	18064 KiB

robots

#include "robots.h"
#include <bits/stdc++.h>
#define ub upper_bound
#define lb lower_bound
#define mp make_pair
#define ff first
#define ss second
#define LINE "--------------------\n"
using namespace std;
using PII = pair <int, int>;
int n, m, k, a, b;
const int N = 5e4+5;
const int M = 1e6+5;
int wLimit[N], szLimit[N];
int w[M], sz[M];
bool removed[N];
bool solve(int lim) {
    priority_queue <PII> vals, vals1;
    for (int i = 0; i < n; i++) vals.push({w[i], sz[i]});
    for (int i = a-1; i >= 0; i--) {
        for (int j = 0; j < lim && !vals.empty(); j++) {
            while(!vals.empty()) {
                PII tmp = vals.top(); 
                if (wLimit[i] <= tmp.ff) {
                    vals.pop();
                    vals1.push({tmp.ss, tmp.ff});
                    continue;
                }
                break;
            }
            if (!vals.empty()) vals.pop();
        }
    }
    while(!vals.empty()) {
        PII tmp = vals.top(); vals.pop();
        vals1.push({tmp.ss, tmp.ff});
    }
    for (int i = b-1; i >= 0; i--) {
        for (int j = 0; j < lim && !vals1.empty(); j++) {
            while(!vals1.empty()) {
                PII tmp = vals1.top(); 
                if (szLimit[i] <= tmp.ff) return 0;
                break;
            }
            if (!vals1.empty()) vals1.pop();
        }
    }
    return vals1.size() == 0;
}
int putaway(int weak, int small, int _n, int _wLimit[], int _szLimit[], int _w[], int _sz[]) {
    n = _n;
    if (weak > 0) sort(_wLimit, _wLimit+weak);
    if (small > 0) sort(_szLimit, _szLimit+small);
    a = weak;
    b = small;
    for (int i = 0; i < weak; i++) wLimit[i] = _wLimit[i];
    for (int i = 0; i < small; i++) szLimit[i] = _szLimit[i];
    for (int i = 0; i < n; i++) w[i] = _w[i], sz[i] = _sz[i];
    if (n == 0) return 0;
    int l = 1, r = n, ans = 1e9;
    while (l <= r) {
        int mid = (l+r)>>1;
        if (solve(mid)) {
            r = mid-1;
            ans = mid;
        } else {
            l = mid+1;
        }
    }
    return ans == 1e9 ? -1 : ans;
}

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