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.
Finding Perfect Squares
Back to basics 9 - Indexed References
Generate a string like abbcccddddeeeee
Remove the Zero
Given a square and a circle, please decide whether the square covers more area.
How many Integers?
Vertical matrix sort
Approximate the cosine function
Capitilize the first letter of every word in a string
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