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.
Summing Digits within Text
vectorization in N
Matrix to column conversion
Compute Fibonacci Number
Extra safe primes
Find the average of a random sequance
Find the largest number
How many Integers?
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