Submission #125991

#	Time	Username	Problem	Language	Result	Execution time	Memory
125991		mechfrog88	Kitchen (BOI19_kitchen)	C++14	31 / 100	1064 ms	504 KiB

kitchen

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#pragma GCC optimize("unroll-loops,no-stack-protector")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
 
using namespace __gnu_pbds;
using namespace std;
 
template <typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
 
typedef long long ll;
typedef long double ld;

ll n,m,k;
ll ans = LLONG_MAX;
vector <ll> chef;
vector <ll> arr;

void func(vector <ll> temp,ll index){
    if (index == m && temp.size() >= k){
        bool ok = true;
        ll left = 0;
        ll c = 0;
        while (c < arr.size() && ok){
            sort(temp.rbegin(),temp.rend());
            ll count = 0;
            for (int z=0;count<k;z++){
                while (temp[z] == 0 && z < temp.size()){
                    z++;
                }
                if (z == temp.size()){
                    ok = false;
                    break;
                }
                count++;
                temp[z]--;
            }
            if (arr[c] < k){
                ok = false;
                break;
            } 
            left += arr[c]-k;
            c++;
        }
        ll s = 0;
        for (int z=0;z<temp.size();z++){
            s += temp[z];
        }
        if (s >= left && ok) ans = min(ans,s-left);
        return;
    }
    if (index == m) return;
    func(temp,index+1);
    temp.push_back(chef[index]);
    func(temp,index+1);
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> m >> k;
    arr.resize(n);
    for (int z=0;z<n;z++){
        cin >> arr[z];
    }
    chef.resize(m);
    for (int z=0;z<m;z++){
        cin >> chef[z];
    }
    vector <ll> temp;
    func(temp,0);
    if (ans == LLONG_MAX){
        cout << "Impossible" << endl;
    } else {
        cout << ans << endl;
    }
}

Compilation message (stderr)

kitchen.cpp: In function 'void func(std::vector<long long int>, ll)':
kitchen.cpp:22:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (index == m && temp.size() >= k){
                       ~~~~~~~~~~~~^~~~
kitchen.cpp:26:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while (c < arr.size() && ok){
                ~~^~~~~~~~~~~~
kitchen.cpp:30:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 while (temp[z] == 0 && z < temp.size()){
                                        ~~^~~~~~~~~~~~~
kitchen.cpp:33:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if (z == temp.size()){
                     ~~^~~~~~~~~~~~~~
kitchen.cpp:48:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int z=0;z<temp.size();z++){
                      ~^~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 22 / 22
• Subtask 3: 0 / 20
• Subtask 4: 0 / 21
• Subtask 5: 0 / 28