N, Q = map(int, input().split())
P = list(map(int, input().split()))

parent = [i for i in range(N)]
def find(x):
    if parent[x] != x:
        parent[x] = find(parent[x])
    return parent[x]

for i in range(N):
    if P[i] != -1:
        a = find(i)
        b = find(P[i]-1)
        parent[a] = b

for _ in range(Q):
    A, B = map(int, input().split())
    if find(A-1) == find(B-1):
        print("Yes")
    else:
        print("No")