Hello, Yeo Kai Shun. Two tips for creating Problems in Cody: (1) do not disclose the solution method within your Test Suite; (2) consider including an allowance for slight rounding in submitted answers [e.g. submission that are just 0.01% more or less than the 'exact' solution]. —DIV
Return the 3n+1 sequence for n
First N Perfect Squares
Count decimal digits of a number
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