What's "correct" may be in the eye of the beholder....
Number of 1s in the Binary Representation of a Number
Sum all integers from 1 to 2^n
Project Euler: Problem 4, Palindromic numbers
CONVERT TAN TO SIN
Sum of odd numbers in a matrix
Unique: Enhanced Performance - Large and Wide Array - Speed Improvement (66% savings)
Chezz_000 : Simplified chess
Knots Contest: Minimum Knots (TestSuite)
Spherical radius given four points
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