class UnionFind:
    def __init__(self, n):
        self.parents = [-1] * n
        self.list_of_size = [1] * n

    def find_root(self, x):
        if self.parents[x] < 0:
            return x
        else:
            self.parents[x] = self.find_root(self.parents[x])
            return self.parents[x]
    
    def union(self, x, y):
        root_of_x = self.find_root(x)
        root_of_y = self.find_root(y)

        if root_of_x == root_of_y:
            return
        
        if self.parents[root_of_x] > self.parents[root_of_y]:
            self.parents[root_of_x] = root_of_y
            self.list_of_size[y] += self.list_of_size[x]
        else:
            self.parents[root_of_y] = root_of_x
            self.list_of_size[x] += self.list_of_size[y]

            if self.parents[root_of_x] == self.parents[root_of_y]:
                self.parents[root_of_x] -= 1
    
    def same(self, x, y):
        return self.find_root(x) == self.find_root(y)
    
    def size(self, x):
        return self.list_of_size[self.find_root(x)]

N, Q = map(int, input().split())
P = list(map(int, input().split()))
uf = UnionFind(N)
for i in range(N):
    if P[i] == -1:
        continue
    uf.union(i, P[i]-1)

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