This problem's test suite has been fixed and expanded.
Inner product of two vectors
Who knows the last digit of pi?
Numbers with prime factors 2, 3 and 5.
Return the first and last characters of a character array
Largest Twin Primes
microseconds passed today
Translate German decimals to English decimals
Persistence will help you solve almost any problem.
Persistence will not help you solve this problem.
calculate the day of the year from a date string.
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