Convert the input sentence to upper case and replace all vowels with an underscore ('_')
Back to basics 26 - Keywords
Penny flipping - calculate winning probability (easy)
Matrix to column conversion
Is this triangle right-angled?
Compare two strings.
Product of all elements in an array
Check for keywords
ASCII sum of phrases
Basics: counting digits of a number irrespective of the sign
Calculating the total earnings of a factory
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