why this code is not correct?
s = summ(v)
sorry mate, this is unfair for those who actually came up with a compact solution
No need to be sorry.
Personally I think the regexp should be always forbidden.
I used it (and I had never thought about it before) because it seems that everyone is using it.
Find the alphabetic word product
Project Euler: Problem 10, Sum of Primes
Set the array elements whose value is 13 to 0
Find nearest prime number less than input number
Beginner's Problem - Squaring
Find the average of a random sequance
Capitilize the first letter of every word in a string
Sum of Two Numbers
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