def frog(arr,k):
 
	for i in range(len(arr)):
 
		if abs(arr[i]-arr[i-1])<=k:
			table[i]=table[i-1]
		else:
			table[i]=table[i-1]+1
 
"""every reachable point will have same number, dictionary maps element unsorted
list to sorted list with element as key and value as index of element in sorted list """
 
n,k,p=map(int,input().split())
lst=[int(x) for x in input().split()]
track={}
lstsorted=sorted(lst)
for i,z in enumerate(lstsorted):
	track[z]=i
 
table=[0]*(n+1)
table[-1]=1
for i in range(p):
	a,b=map(int,input().split())
	i=lst[a]
 
	frog(lstsorted,k)
	# print(table)
 
	x,y=track[lst[a-1]],track[lst[b-1]]
	print("Yes" if table[x]==table[y] else "No")
 

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MyA1IDIKMCA1IDEyCjEgMgoxIDM=

3 5 2
0 5 12
1 2
1 3