so good solutions
Find state names that end with the letter A
Given an unsigned integer x, find the largest y by rearranging the bits in x
Increment a number, given its digits
Angle between Two Vectors
Permute diagonal and antidiagonal
Scrabble Scores - 7
Fill-a-pix - Solver (basic)
Divisible by n, prime vs. composite divisors
Highly divisible triangular number (inspired by Project Euler 12)
Divisible by 5
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