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Hi How to add a number to each integer in the list A that generates new list B using python. also I want to generate n number of lists Example: a = [1,2,3] and n = 2 add k = 3 to each element in a that gives b = [4,5,6] and add k to list b that gives c = [7,8,9] I achieved this using map function but I want to generate n number of lists.

def bw(n, k):
    test_list = [1,2,3]
    if n > 1:
        res = list(map(lambda x :x+k, test_list))
        return test_list, res
        return test_list
print bw(3, 2)

Output b = [4,5,6] c = [7,8,9]

If you just want the final array:

def bw(n, k):
    test_list = [1,2,3]
    return [x+n*k for x in test_list]

print(bw(3, 2))

If you want a list of lists as well:

def bw(n, k):
    test_list = [1,2,3]
    res = []
    for i in range(0,n):
        test_list = [x+k for x in test_list]

    return test_list, res

print(bw(3, 2))

Python, Python | Adding two list elements. There can be many situations in which one requires to find index wise summation of two different lists. This can have a� Given a list of numbers, write a Python program to find the sum of all the elements in the list. Example: Input: [12, 15, 3, 10] Output: 40 Input: [17, 5, 3, 5] Output: 33

res = [x + k for x in test_list]

This is straight from GeeksforGeeks.

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Here is a solution:

test_list = [1,2,3]

def bw(test_list, n, k):
    output= []
    temp = test_list
    for i in range(n):
        temp = [j + k for j in temp]
    return output

print (bw(test_list, 2, 3))

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