This program will generate the permutation graph for a given permutation.
Usage: ./permgraph [OPTION]...
-h, --help display this help and exit
-v, --version output version information and exit
-s, --size size of permutation
-l, --lexical lexical permutation
-r, --random random permutation
-p, --permutation comma delimited permutation
-2, --second 2nd permutation to apply to first
-a, --average print average number of edges for given # of permutations
-d, --dot generate dot files
-i, --histogram generate histogram
-c, --circle generate circle graph
-n, --invert include inverted version of permutation