Usage: cwg [options]
  -i file   : set input file.
  -W int    : set the width of the crosswords.
  -H int    : set the height of the crosswords.
  -t string : set the title of the crosswords.
  -n int    : number of runs, best crossword kept.
  -v        : verbose mode.
  -l        : latex format.
  -w        : web format.
  -h        : display this help message.
Examples:
  cwg -i words.txt > crossword.txt
  cwg -li words.txt | rubber-pipe --pdf > crossword.pdf
  cwg -wi words.txt > crossword.html