R=range
def J():
	return map(int,input().split())
N,Q=J()
P=list(J())
p=[n for n in R(N+1)]
def r(i):
	m=p[i]
	while i!=m:
		p[i]=i=p[m]
		m=p[i]
	return i
for i in R(N):
	if P[i]>0:
		A,B=r(i+1),r(P[i])
		p[A]=B
for q in R(Q):
	A,B=J()
	print("Yes"if r(A)==r(B)else"No")