Submission #1078035

#	Time	Username	Problem	Language	Result	Execution time	Memory
1078035		TheQuantiX	Robots (IOI13_robots)	C++17	90 / 100	3048 ms	46252 KiB

robots

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

using namespace std;
using ll = long long;

ll n, m, q, k, x, y, a, b, c;

int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
    vector< pair<ll, ll> > v;
    for (int i = 0; i < T; i++) {
        v.push_back({W[i], S[i]});
    }
    sort(v.begin(), v.end());
    sort(X, X + A);
    sort(Y, Y + B);
    if (B == 0) {
        ll l = T / (A + B), r = T + 1;
        while (r > l) {
            ll mid = (r + l) / 2;
            // cout << mid << endl;
            ll pos = 0;
            ll cnt = 0;
            for (int i = 0; i < A; i++) {
                while (pos != T && v[pos].first < X[i]) {
                    cnt++;
                    pos++;
                }
                cnt -= min(cnt, mid);
            }
            if (cnt == 0 && pos == T) {
                r = mid;
            }
            else {
                l = mid + 1;
            }
        }
        if (l == T + 1) {
            return -1;
        }
        return l;
    }
    ll l = T / (A + B), r = T + 1;
    while (r > l) {
        ll mid = (r + l) / 2;
        // cout << mid << endl;
        ll pos = 0;
        multiset<ll> st;
        for (int i = 0; i < A; i++) {
            while (pos != T && v[pos].first < X[i]) {
                st.insert(v[pos].second);
                pos++;
            }
            for (int j = 0; j < mid; j++) {
                if (st.size() == 0) {
                    break;
                }
                // cout << i << ' ' << *st.rbegin() << endl;
                st.erase(--st.end());
            }
        }
        while (pos != T) {
            st.insert(v[pos].second);
            pos++;
        }
        // cout << st.size() << endl;
        bool fl = 1;
        for (int i = B - 1; i >= 0; i--) {
            if (st.empty()) {
                break;
            }
            if ((*st.rbegin()) >= Y[i]) {
                fl = 0;
                break;
            }
            for (int j = 0; j < mid; j++) {
                if (st.size() == 0) {
                    break;
                }
                st.erase(--st.end());
            }
        }
        if (st.size() != 0) {
            fl = 0;
        }
        if (fl) {
            r = mid;
        }
        else {
            l = mid + 1;
        }
    }
    if (l == T + 1) {
        return -1;
    }
    return l;
}

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