Submission #1008002

#	Time	Username	Problem	Language	Result	Execution time	Memory
1008002		Mardonbekhazratov	Boxes with souvenirs (IOI15_boxes)	C++17	10 / 100	1 ms	448 KiB

boxes

#include "boxes.h"
#include<bits/stdc++.h>
#define ll long long
using namespace std;

long long delivery(int N, int K, int L, int p[]) {
    multiset<int>left,right;
    for(int i=0;i<N;i++){
        left.insert(p[i]);
        right.insert(L-p[i]);
    }
    ll ans=0;
    while(!left.empty()){
        int k=K;
        ll sl=0,sr=0;
        vector<int>l,r;
        while(!left.empty() && k--){
            l.push_back(*left.begin());
            r.push_back(*right.begin());
            right.erase(right.begin());
            left.erase(left.begin());
        }
        sl+=min(2*l.back(),L);
        sr+=min(2*r.back(),L);
        if(sl<sr){
            ans+=sl;
            for(int x:r) right.insert(x);
            for(int x:l){
                right.erase(right.find(L-x));
            }
        }
        else{
            ans+=sr;
            for(int x:l) left.insert(x);
            for(int x:r){
                left.erase(left.find(L-x));
            }
        }
    }
    return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30