10分求条

#include<bits/stdc++.h>
using namespace std;
int n,l,maxn=0,minn=0,x[5020];
int main()
{
	cin>>l>>n;
	if(n==0)
	{
		maxn=0;
		minn=0;
	}
	else
	{
		for(int i=1;i<=n;i++)
		{
			cin>>x[i];
			maxn=max(maxn,max(l+1-x[i],x[i]));
			minn=min(minn,min(l+1-x[i],x[i]));
		}
		cout<<minn+2<<" "<<maxn;
	}
	return 0;
}