问题
How do I generate all possible permutations of a list of numbers in C?
As an example, [1, 8, 12] would generate
[1, 12, 8], [12, 8, 1], [12, 1, 8], ...
回答1:
Have a look at this Johnson-Trotter Algorithm and applet it is exactly what you want.
来源：https://stackoverflow.com/questions/4270805/how-do-i-generate-all-permutations-of-a-list-of-numbers