Submission #1140756

#	Time	Username	Problem	Language	Result	Execution time	Memory
1140756		MuhammadSaram	Sprinklers (CEOI24_sprinklers)	C++20	9 / 100	65 ms	1188 KiB

Main

#include <bits/stdc++.h>

using namespace std;

int main()
{
	int n,m;
	cin>>n>>m;
	int a[n],b[m];
	for (int i=0;i<n;i++)
		cin>>a[i];
	for (int i=0;i<m;i++)
		cin>>b[i];
	int s=-1,e=1e9+1;
	while (s+1<e)
	{
		int mid=(s+e)/2;
		int id=0;
		for (int i=0;i<n && id<m;i++)
		{
			if (b[id]<a[i])
			{
				while (id<m && b[id]>=a[i]-mid && b[id]<=a[i])
					id++;
			}
			else
			{
				while (id<m && b[id]<=a[i]+mid)
					id++;
			}
		}
		if (id==m)
			e=mid;
		else
			s=mid;
	}
	if (e==1e9+1)
		e=-1;
	cout<<e<<endl;
	if (e!=-1)
	{
		int id=0;
		for (int i=0;i<n;i++)
		{
			if (id<m && b[id]<a[i])
			{
				cout<<'L';
				while (id<m && b[id]<=a[i])
					id++;
			}
			else
			{
				cout<<'R';
				while (id<m && b[id]<=a[i]+e)
					id++;
			}
		}
		cout<<endl;
	}
	
	return 0;
}

• Subtask 0: 0 / 0
• Subtask 1: 3 / 3
• Subtask 2: 6 / 6
• Subtask 3: 0 / 17
• Subtask 4: 0 / 27
• Subtask 5: 0 / 47