IntersectionofTwoArrays.py

# You have been given two integer arrays/list(ARR1 and ARR2) of size N and M, respectively. 
# You need to print their intersection; 
# An intersection for this problem can be defined when both the arrays/lists contain a particular value or to put it in other words, 
# when there is a common value that exists in both the arrays/lists.


import sys

def intersections(arr1, n, arr2, m) :
    #Your code goes here
    for i in range(len(arr1)):
        for j in range(len(arr2)):
            if arr1[i] == arr2[j]:
                print(arr1[i], end=' ')
                arr2[j] = -1 # arr2[j] = sys.maxsize
                break


#Taking Input Using Fast I/O
def takeInput() :
    n = int(sys.stdin.readline().strip())
    if n == 0:
        return list(), 0

    arr = list(map(int, sys.stdin.readline().strip().split(" ")))
    return arr, n


#main
t = int(sys.stdin.readline().strip())

while t > 0 :
    arr1, n = takeInput()
    arr2, m = takeInput()

    intersections(arr1, n, arr2, m)
    print()

    t -= 1