Submission #69436

#	Time	Username	Problem	Language	Result	Execution time	Memory
69436		Vahan	Boxes with souvenirs (IOI15_boxes)	C++17	100 / 100	539 ms	196172 KiB

boxes

#include "boxes.h"
#include<algorithm>
using namespace std;
long long count_clock[20000000],clock[20000000],pat;
long long delivery(int N, int K, int L, int p[]) {
    for(int i=0;i<N;i++)
    {
        if(i<K)
            clock[i]=2*p[i];
        else
            clock[i]=clock[i-K]+2*p[i];
    }
    pat=clock[N-1];
    for(int i=N-1;i>=0;i--)
    {
        if(i+K>N-1)
            count_clock[i]=2*(L-p[i]);
        else
            count_clock[i]=count_clock[i+K]+2*(L-p[i]);
    }
    pat=min(pat,count_clock[0]);
    pat=min(count_clock[K]+L,pat);
    for(int i=0;i<N-K;i++)
        pat=min(clock[i]+count_clock[i+K+1]+L,pat);
    for(int i=0;i<N;i++)
        pat=min(clock[i]+count_clock[i+1],pat);
    return pat;
}

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