Submission #986368

#	Time	Username	Problem	Language	Result	Execution time	Memory
986368		Pyqe	Boxes with souvenirs (IOI15_boxes)	C++17	100 / 100	526 ms	372076 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>

using namespace std;

long long n,a[10000069],dp[2][10000069],inf=1e18;

long long delivery(int on,int d,int ln,int aa[])
{
	long long i,ii,u,z=inf;
	
	n=on;
	for(i=1;i<=n;i++)
	{
		a[i]=aa[i-1];
	}
	for(ii=0;ii<2;ii++)
	{
		u=!ii*2-1;
		for(i=1+(n-1)*ii;i!=(n+1)*!ii;i+=u)
		{
			dp[ii][i]=dp[ii][min(max(i-d*u,0ll),n+1)]+abs(a[i]-ln*ii)*2;
		}
	}
	for(i=0;i<=n;i++)
	{
		z=min(z,dp[0][i]+min(dp[1][i+1],dp[1][min(i+d+1,n+1)]+ln));
	}
	return z;
}

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