Submission #1036294

#	Time	Username	Problem	Language	Result	Execution time	Memory
1036294		beaconmc	Robots (IOI13_robots)	C++14	100 / 100	1550 ms	50240 KiB

robots

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

typedef int ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)

using namespace std;


bool lmao(vector<ll>& stuff, vector<ll>& robot, ll k){
    reverse(stuff.begin(), stuff.end());

    ll cur = 0;
    for (auto&i : robot){
        ll cnt = 0;
        while (cur < stuff.size() && cnt < k){
            if (stuff[cur] < i) cur++, cnt++;
            else break;
        }
    }
    if (cur == stuff.size()) return true;
    else return false;
}


int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]) {
    vector<ll> x(A),y(B);
    vector<vector<ll>> lol(T);
    FOR(i,0,A) x[i] = (X[i]);
    FOR(i,0,B) y[i] = (Y[i]);
    FOR(i,0,T) lol[i] = {W[i], S[i]};

    sort(x.begin(), x.end());
    sort(y.begin(), y.end());
    sort(lol.begin(), lol.end());


    ll l = 1;
    ll r = T+1;
    priority_queue<ll> sus;
    while (l<r){

        ll mid = (l+r)/2;
        
        ll cur = 0;

        for (auto&i : x){
            while (cur < lol.size()){
                if (lol[cur][0] < i) sus.push(lol[cur][1]), cur++;
                else break;
            }
            FOR(k,0,mid){
                if (sus.size()) sus.pop();
                else break;
            }
        }
        while (cur < lol.size()) sus.push(lol[cur][1]), cur++;
        vector<ll> idk;
        while (sus.size()){
            idk.push_back(sus.top());
            sus.pop();
        }

        if (lmao(idk,y,mid)) r = mid;
        else l = mid+1;
    }
    if (l==T+1) return -1;
    else return l;

}

Compilation message (stderr)

robots.cpp: In function 'bool lmao(std::vector<int>&, std::vector<int>&, ll)':
robots.cpp:17:20: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |         while (cur < stuff.size() && cnt < k){
      |                ~~~~^~~~~~~~~~~~~~
robots.cpp:22:13: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |     if (cur == stuff.size()) return true;
      |         ~~~~^~~~~~~~~~~~~~~
robots.cpp: In function 'int putaway(int, int, int, int*, int*, int*, int*)':
robots.cpp:49:24: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |             while (cur < lol.size()){
      |                    ~~~~^~~~~~~~~~~~
robots.cpp:58:20: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |         while (cur < lol.size()) sus.push(lol[cur][1]), cur++;
      |                ~~~~^~~~~~~~~~~~

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