Submission #414030

#	Time	Username	Problem	Language	Result	Execution time	Memory
414030		TLP39	Boxes with souvenirs (IOI15_boxes)	C++14	10 / 100	1 ms	204 KiB

boxes

#include "boxes.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
 
int n,k,l;
int cl=0,ch=0;
ll dpl[10000001],dph[10000001];
 
long long delivery(int N, int K, int L, int p[]) {
    n=N;
    k=K;
    l=L;
    for(int i=0;i<n;i++)
    {
        if(p[i]==0) continue;
        if(p[i]<=l/2)
        {
            dpl[cl]=(ll)p[i];
            dpl[cl]+=(cl>=k? dpl[cl-k]:0);
            cl++;
        }
        else
        {
            dph[ch]=(ll)(l-p[i]);
            ch++;
        }
    }
    ll temp;
    for(int i=0;i<ch/2;i++)
    {
        temp=dph[i];
        dph[i]=dph[ch-1-i];
        dph[ch-1-i]=temp;
    }
    for(int i=k;i<ch;i++)
    {
        dph[i]+=dph[i-k];
    }
    ll ans=2*(dph[ch-1]+dpl[cl-1]);
    for(int i=0;i<=k;i++)
    {
        if(i>cl || k-i>ch) continue;
        ans=min(ans,(ll)l+2*(dph[ch-1-i]+dpl[cl-1-(k-i)]));
    }
    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