Binary search example 2

from bisect import bisect_left, bisect_right

n, k = map(int, input().split())
a = [int(x) for x in input().split()]

for y in input().split():
  y = int(y)

  if bisect_left(a, y) != bisect_right(a, y):
    print("YES")
  else:
    print("NO")