Comment

JiaweiPeng: 2024-01-03 00:05:09

def has_pair_with_sum(arr, x):
    seen = set()
    for num in arr:
        if x - num in seen:
            return "yes"
        seen.add(num)
    return "no"

m = int(input())
for _ in range(m):
    n, x = map(int, input().split())
    arr = list(map(int, input().split()))
    print(has_pair_with_sum(arr, x))

User01: 2020-11-02 10:54:12

Syntactic requirements?