90TLE

#include<bits/stdc++.h>
#define N 1000001
#define int long long
using namespace std;
int n,k,a[N],b[N],c[N];
signed main(){
	cin>>n>>k;
	memset(b,0x3f,sizeof b);
	memset(c,0xcf,sizeof c);
	for(int i=1;i<=n;i++)cin>>a[i];
	for(int i=1;i<=n-k+1;i++){
		for(int j=i;j<=i+k-1;j++){
			b[i]=min(b[i],a[j]);
			c[i]=max(c[i],a[j]);
		}
	}
	for(int i=1;i<=n-k+1;i++)cout<<b[i]<<" ";
	cout<<"\n";
	for(int i=1;i<=n-k+1;i++)cout<<c[i]<<" ";
	return 0;
}