Permuting Two Arrays

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    Here is Python 3 solution from my HackerrankPractice repository:

    n = int(input())
    for _ in range(n):
        __, k = map(int, input().split())
        a = sorted(list(map(int, input().split())))
        b = sorted(list(map(int, input().split())), reverse=True)
        if all([a[i] + b[i] >= k for i in range(len(a))]):
            print('YES')
        else:
            print('NO')
    

    Feel free to ask if you have any questions :)