graph-coloring-sampler
======================
Input is of the following format:
n               # of vertices
m               # of edges
q               # of colors
u1 v1           # e1
u2 v2           # e2
u3 v3           # e3
.               .
.               .
.               .
um-1 vm-1       # em-1
um vm           # em


The program does not check the input file for any condition. Input is assumed
to be valid.

If the program is invoked without command-line arguments it searches for input
on standard in. Otherwise the program uses the filename specified in the
first commandline argument.