Submission #259715

#	Time	Username	Problem	Language	Result	Execution time	Memory
259715		uacoder123	Boxes with souvenirs (IOI15_boxes)	C++14	100 / 100	575 ms	293320 KiB

boxes

#include <bits/stdc++.h>
#include "boxes.h"
using namespace std;
#define F first
#define S second
#define FOR(i,a,b) for (auto i = (a); i <= (b); ++i)
#define NFOR(i,a,b) for(auto i = (a); i >= (b); --i)
#define all(x) (x).begin(), (x).end()
#define sz(x) int(x.size())
#define mp(i,a) make_pair(i,a)
#define pb(a) push_back(a)
#define bit(x,b) (x&(1LL<<b))

typedef long long int lli;
typedef pair <lli,lli> ii;
typedef pair <lli,ii> iii;
typedef vector <lli> vi;

lli arr[10000000],arr1[10000000],ans=0;
long long delivery(int N, int K, int L, int p[]) 
{
    lli n,k,l;
    n=N;
    k=K;
    l=L;
    for(lli i=0;i<n;++i)
    {
        arr[i]=p[i]*2+((i-k>=0)?arr[i-k]:0*1LL);
    }
    for(lli i=n-1;i>=0*1LL;--i)
        arr1[i]=(l-p[i])*2+((i+k<=n-1)?arr1[i+k]:0*1LL);
    ans=min(arr[n-1],arr1[0*1LL]);
    for(lli i=0*1LL;i<n-1;++i)
        ans=min(ans,arr[i]+arr1[i+1]);
    for(lli i=0*1LL;i<=n;++i)
        ans=min(ans,((i>0*1LL)?arr[i-1]:0*1LL)+l+((n-i-k>0*1LL)?arr1[(n)-(n-k-i)]:0*1LL));
    return(ans);
}

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