Problem:
Score: 300 points

Problem Statement

M-kun is a student in Aoki High School, where a year is divided into N terms.

There is an exam at the end of each term. According to the scores in those exams, a student is given a grade for each term, as follows:

For the first through (K-1)-th terms: not given.

For each of the K-th through N-th terms: the multiplication of the scores in the last K exams, including the exam in the graded term.

M-kun scored A_i in the exam at the end of the i-th term.

For each i such that K+1 \leq i \leq N, determine whether his grade for the i-th term is strictly greater than the grade for the (i-1)-th term.

Constraints

2 \leq N \leq 200000

1 \leq K \leq N-1

1 \leq A_i \leq 10^{9}

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N K
A_1 A_2 A_3 \ldots A_N

Output

Print the answer in N-K lines.

The i-th line should contain Yes if the grade for the (K+i)-th term is greater than the grade for the (K+i-1)-th term, and No otherwise.

Sample Input 1

5 3
96 98 95 100 20

Sample Output 1

Yes
No

His grade for each term is computed as follows:

3-rd term: (96 \times 98 \times 95) = 893760

4-th term: (98 \times 95 \times 100) = 931000

5-th term: (95 \times 100 \times 20) = 190000

Sample Input 2

3 2
1001 869120 1001

Sample Output 2

No

Note that the output should be No if the grade for the 3-rd term is equal to the grade for the 2-nd term.

Sample Input 3

15 7
3 1 4 1 5 9 2 6 5 3 5 8 9 7 9

Sample Output 3

Yes
Yes
No
Yes
Yes
No
Yes
Yes

Solution in C++ (GCC 9.2.1) (judge verdict: Wrong Answer)

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

void __print(int x) {cerr << x;};void __print(long x) {cerr << x;};void __print(long long x) {cerr << x;};void __print(unsigned x) {cerr << x;};void __print(unsigned long x) {cerr << x;};void __print(unsigned long long x) {cerr << x;};void __print(float x) {cerr << x;};void __print(double x) {cerr << x;};void __print(long double x) {cerr << x;};void __print(char x) {cerr << '\'' << x << '\'';};void __print(const char *x) {cerr << '\"' << x << '\"';};void __print(const string &x) {cerr << '\"' << x << '\"';};void __print(bool x) {cerr << (x ? "true" : "false");}

#define int             long long
#define setbits(x)      __builtin_popcountll(x)
#define zerobits(x)      __builtin_ctzll(x)
#define mod             1000000007
#define inf             1e18
#define endl             '\n'
#define pb              push_back
#define all(x)          x.begin(),x.end()
#define ff              first
#define ss              second
int powmod(int a,int b) {int res=1;a%=mod; assert(b>=0); for(;b;b>>=1){if(b&1)res=res*a%mod;a=a*a%mod;}return res;}
int string_to_int(string s){int ans = 0;int p=1;for(int i=s.size()-1;i>=0;i--){ans += (s[i]-'0')*p;p *= 10;}return ans;}

//DEBUGGING-LINES
template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr <<'}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i);cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif

void t_c_c()
{
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
/*#ifndef ONLINE_JUDGE
	freopen("inp.txt", "r", stdin);
	freopen("out.txt", "w", stdout);
#endif*/

	int n,k; cin >> n >> k;
	int prod = 1;
	int arr[n];
	
	for(int i=0;i<n;i++){
		cin >> arr[i];
		if(i<k){
			prod*=arr[i];
		}
	}
	int prev = prod;
	int idx = 0;
	for(int i=k;i<n;i++){
		int new_prod = (prev*arr[i])/arr[idx];
		idx++;
		if(new_prod > prev){
			cout << "Yes" << endl;
		}
		else{
			cout << "No" << endl;
		}
		prev = new_prod;
	}
}

int32_t main()
{
	t_c_c();
	return 0;
}