Submission #412931

#	Time	Username	Problem	Language	Result	Execution time	Memory
412931		ScarletS	Boxes with souvenirs (IOI15_boxes)	C++17	10 / 100	1 ms	300 KiB

boxes

#include <bits/stdc++.h>
#define ll long long
using namespace std;

const int INF = 2e9+7;

ll delivery(int n, int k, int l, int p[])
{
	int x=0,y=n-1;
	ll ans=0;
	for (int i=k-1;i<n;i+=k)
	{
		if (p[i]>(l-1)/2)
			break;
		x=i+1;
		ans+=p[i]*2;
		//cout<<p[i]*2<<"!\n";
	}
	for (int i=n-k;i>=0;i-=k)
	{
		if (p[i]<(l+2)/2)
			break;
		y=i-1;
		ans+=(l-p[i])*2;
		//cout<<(l-p[i])*2<<"!\n";
	}
	//cout<<x<<" "<<y<<"\n";
	ans+=1LL*((y-x+k)/k)*l;
    return ans;
}

// int main()
// {
// 	int n,k,l;
// 	cin>>n>>k>>l;
// 	int p[n];
// 	for (int i=0;i<n;++i)
// 		cin>>p[i];
// 	cout<<delivery(n,k,l,p);
// }

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