Given a time in HH:MM:SS, find the smallest angle (in degrees) between the hour and minute hand
I solved, but the solution is wrong, there is no 60th minute in analog clocks (test case 20). Do not try to use mod until they fix it.
Nice trick with the 222.2 - very clever!
Word Counting and Indexing
Get the area codes from a list of phone numbers
Flip the main diagonal of a matrix
Find the hypotenuse
Find the nearest prime number
Lychrel Number Test (Inspired by Project Euler Problem 55)
Recurring Cycle Length (Inspired by Project Euler Problem 26)
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Test if two numbers have the same digits
Make a 1 hot vector
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