two-arrays.py

#!/bin/python3

import math
import os
import random
import re
import sys

#
# Complete the 'twoArrays' function below.
#
# The function is expected to return a STRING.
# The function accepts following parameters:
#  1. INTEGER k
#  2. INTEGER_ARRAY A
#  3. INTEGER_ARRAY B
#

def twoArrays(k, A, B):
    A.sort()
    B.sort()
    B.reverse()
    sum_ab = [a+b for a,b in zip(A, B)]
    filtered_k = list(filter(lambda x: x >= k, sum_ab))
    if len(filtered_k) == len(sum_ab):
        return 'YES'
    return 'NO'

if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')

    q = int(input().strip())

    for q_itr in range(q):
        first_multiple_input = input().rstrip().split()

        n = int(first_multiple_input[0])

        k = int(first_multiple_input[1])

        A = list(map(int, input().rstrip().split()))

        B = list(map(int, input().rstrip().split()))

        result = twoArrays(k, A, B)

        fptr.write(result + '\n')

    fptr.close()