Given the unsigned 8-bit integer x, return the number y which is the binary inversion of x.
For example if x is 5, y should be 250 because:
5 (8-bit): 00000101
250 (8-bit): 11111010
Determine Whether an array is empty
Rotate a Matrix by 90 degrees
Matlab Basics - Rounding II
Times 3 problem
Odd times even numbers in a matrix
Add the positive numbers
Reduce the logic
All odd - all even
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