Three circles are mutually tangent to each other and also to a line.
find the radius of the smallest circle. The radius of the other two is given.
Make a Palindrome Number
Project Euler: Problem 5, Smallest multiple
Numbers with prime factors 2, 3 and 5.
Determine if input is a perfect number
Integer Sequence - II : New Fibonacci
The Dark Knight
Ugly numbers - 02
Minimal Path - 04
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