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- n, k = map(int, input().split())
- n1 = list(map(int, input().split()))
- k1 = list(map(int, input().split()))
- for i in k1:
- l = 0
- r = n - 1
- while r - l > 1:
- m = (r + l) // 2
- if n1[m] < i:
- l = m
- else:
- r = m
- if n1[l] - i <= n1[r] - i:
- if n1[l] == i or n1[r] == i:
- print('YES')
- else:
- print('NO')
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