n, q = map(int, input().split())
p = [pi - 1 if pi > 0 else i for i, pi in enumerate(map(int, input().split()))]
for i in range(n):
    j = i
    while p[j] != j:
        j = p[j]
    while i != j:
        p[i] = j
        i = p[i]
for _ in range(q):
    a, b = map(int, input().split())
    print('Yes' if p[a - 1] == p[b - 1] else 'No')