CODEWITHSUNDEEP
listrandomaddition
Mathslover shah
Mathslover shah

Reputation: 119

Adding every two numbers in a list

I have the following problem

import random
a_list = range(0,64)
a = random.sample(a_list,16)
print(a)

So I get 16 random numbers.

Now what I want further is to add every two numbers in the random set of 16 elements even with each number to be added with itself.

Upvotes: 0

Views: 121

Answers (2)

LGrementieri
LGrementieri

Reputation: 800

If you want to use just pure python lists, the solution can be a one-liner list comprehension.

sums_list = [n+m for n in a for m in a]

With Numpy you can use broadcasting.

import numpy as np
arr = np.array(a)
sums = arr[:, np.newaxis] + arr[np.newaxis, :]
sums_list = sums.flatten().tolist()

Upvotes: 1

DueSouth
DueSouth

Reputation: 117

Can you please write down an example of what you are trying to achieve?

Upvotes: 0

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