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 (Python):
import sys,bisect,string,math,time,functools,random,fractions
from heapq import heappush,heappop,heapify
from collections import deque,defaultdict,Counter
from itertools import permutations,combinations,groupby
rep=range;R=range
def Golf():n,*t=map(int,open(0).read().split())
def I():return int(input())
def S_():return input()
def IS():return input().split()
def LS():return [i for i in input().split()]
def MI():return map(int,input().split())
def LI():return [int(i) for i in input().split()]
def LI_():return [int(i)-1 for i in input().split()]
def NI(n):return [int(input()) for i in range(n)]
def NI_(n):return [int(input())-1 for i in range(n)]
def StoLI():return [ord(i)-97 for i in input()]
def ItoS(n):return chr(n+97)
def LtoS(ls):return ''.join([chr(i+97) for i in ls])
def RA():return map(int,open(0).read().split())
def GI(V,E,ls=None,Directed=False,index=1):
    org_inp=[];g=[[] for i in range(V)]
    FromStdin=True if ls==None else False
    for i in range(E):
        if FromStdin:
            inp=LI()
            org_inp.append(inp)
        else:
            inp=ls[i]
        if len(inp)==2:
            a,b=inp;c=1
        else:
            a,b,c=inp
        if index==1:a-=1;b-=1
        aa=(a,c);bb=(b,c);g[a].append(bb)
        if not Directed:g[b].append(aa)
    return g,org_inp
def GGI(h,w,search=None,replacement_of_found='.',mp_def={'
    
    mp=[boundary]*(w+2);found={}
    for i in R(h):
        s=input()
        for char in search:
            if char in s:
                found[char]=((i+1)*(w+2)+s.index(char)+1)
                mp_def[char]=mp_def[replacement_of_found]
        mp+=[boundary]+[mp_def[j] for j in s]+[boundary]
    mp+=[boundary]*(w+2)
    return h+2,w+2,mp,found
def TI(n):return GI(n,n-1)
def accum(ls):
    rt=[0]
    for i in ls:rt+=[rt[-1]+i]
    return rt
def bit_combination(n,base=2):
    rt=[]
    for tb in R(base**n):s=[tb//(base**bt)%base for bt in R(n)];rt+=[s]
    return rt
def gcd(x,y):
    if y==0:return x
    if x%y==0:return y
    while x%y!=0:x,y=y,x%y
    return y
def YN(x):print(['NO','YES'][x])
def Yn(x):print(['No','Yes'][x])
def show(*inp,end='\n'):
    if show_flg:print(*inp,end=end)

mo=10**9+7
inf=float('inf')
FourNb=[(-1,0),(1,0),(0,1),(0,-1)];EightNb=[(-1,0),(1,0),(0,1),(0,-1),(1,1),(-1,-1),(1,-1),(-1,1)];compas=dict(zip('WENS',FourNb));cursol=dict(zip('LRUD',FourNb))
l_alp=string.ascii_lowercase

read=sys.stdin.buffer.read;readline=sys.stdin.buffer.readline;input=lambda:sys.stdin.readline().rstrip()



show_flg=False
show_flg=True

ans=0

n,k=LI()
a=LI()
for i in range(n-k):
    if a[i]<a[i+k]:
        Yn(1)
    else:
        Yn(0)

Solution (Python):

N,K = map(int,input().split())

A = list(map(int,input().split()))

for i in range(N-K):

    if A[i] < A[i+K]:
        print ("Yes")
    else:
        print ("No")

Solution (Python):
n,k = map(int,input().split())
a = list(map(int,input().split()))

for i in range(n - k):
    if a[i] < a[i + k]:
        print('Yes')
    else:
        print('No')