Submission #862065

#	Time	Username	Problem	Language	Result	Execution time	Memory
862065		culver0412	Boxes with souvenirs (IOI15_boxes)	C++17	0 / 100	1 ms	440 KiB

boxes

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

long long delivery(int N, int K, int L, int p[]) {
    sort(p,p+N);
    long long arr[N],brr[N],cursum=0;
    int cnt=0;
    for(int i=0;i<N;i++){
        if(p[i]==0){
            arr[i]=0;
            continue;
        }
        arr[i]=cursum+min(p[i]*2,L);
        cnt++;
        if(cnt==K){
            cursum+=min(p[i]*2,L);
            cnt=0;
        }
    }
    cursum=0;
    cnt=0;
    for(int i=N-1;i>=0;i--){
        if(p[i]==0){
            arr[i]=((i==N-1)?(0):(brr[i+1]));
            continue;
        }
        brr[i]=cursum+min((L-p[i])*2,L);
        cnt++;
        if(cnt==K){
            cursum+=min((L-p[i])*2,L);
            cnt=0;
        }
    }
    long long ans=min(brr[0],arr[N-1]);
    //cout << brr[0] << '\n';
    for(int i=0;i<N-1;i++){
        //cout << arr[i] << ' ' << brr[i+1] << '\n';
        ans=min(ans,arr[i]+brr[i+1]);
    }
    //cout << arr[N-1] << '\n';
    return ans;
}

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