First test case is invalid. Please fix it.
I have fixed it.
and the fourth...
It must be OK now!
Connect Four Win Checker
given 3 sides, find area of this triangle
Duplicate each element of a vector.
Sum of first n integers
Check that number is whole number
Check if the input is a strong prime
Cryptography with A Square Matrix : Encoding
Pi Digit Probability
Get Next Combination
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