In this HackerRank No Idea! the problem we have given an array of integers. we need to like all the integers in the set and dislike all the integers in sets. your initial happiness is for each integer in the array if we add to happiness. otherwise, our happiness does not change. we need to output our final happiness at the end.

HackerRank No Idea! solution in Python


Problem solution in Python 2 programming.

import sys

def main():
    h = Happiness()
    input = get_input()
    m = input["m"]
    n = input["n"]
    n_array = input["n_array"]
    A_set = input["A_set"]
    B_set = input["B_set"]
    for num in n_array:
        if num in A_set:
            h.incr()
        elif num in B_set:
            h.decr()
    print h.val

class Happiness():
    def __init__(self):
        self.val = 0
    def incr(self):
        self.val += 1
    def decr(self):
        self.val -= 1

def get_input():
        input_m_n = sys.stdin.readline().strip()
        input_n_array = sys.stdin.readline().strip()
        input_A_set = sys.stdin.readline().strip()
        input_B_set = sys.stdin.readline().strip()
        m, n = input_m_n.split(' ')
        n_array = input_n_array.split(' ')
        A_set = set(input_A_set.split(' '))
        B_set = set(input_B_set.split(' '))
        result = {"m":m, "n":n, "n_array": n_array, "A_set": A_set, "B_set": B_set}
        return result

if __name__ == '__main__':
    main()


Problem solution in Python 3 programming.

# Enter your code here. Read input from STDIN. Print output to STDOUT
n, m = input().split()

sc_ar = input().split()

A = set(input().split())
B = set(input().split())
print(sum([(i in A) - (i in B) for i in sc_ar]))


Problem solution in pypy programming.

# Enter your code here. Read input from STDIN. Print output to STDOUT
n, m = raw_input().split()

arr = raw_input().split()

A = set(raw_input().split())
B = set(raw_input().split())
print sum([(i in A) - (i in B) for i in arr])


Problem solution in pypy3 programming.

# Enter your code here. Read input from STDIN. Print output to STDOUT
numlst =input().split()
l = input().split()
A = set(input().split())
B = set(input().split())
print(len(list(filter(lambda x: x in A, l))) - len(list(filter(lambda x: x in B, l))))