La prossima volta fammi il piacere di andare in bagno come tutti i mortali... con i giornaletti porno!!!Faithfully, to#!/usr/bin/env python# encoding: utf-8"""undirect.pyCreated by Michele Catasta on 2007-06-23.Checks if a graph contained in a DIMACS .gr file is undirect.Silent output if positive.Usage: python undirect.py FILE_NAME.gr"""import sysimport osdef main(): f = open(sys.argv[1],"r") # skips comments and additional infos while 1: start = f.tell() header = f.readline()[0:1] if header != 'a': pass else: f.seek(start) break i = iter(f) # undirectness check try: while True: oddline = i.next() evenline = i.next() a1, b1, w1 = [int (j) for j in oddline.split(" ")[1:4]] b2, a2, w2 = [int (j) for j in evenline.split(" ")[1:4]] if(a1 != a2 or b1 != b2 or w1 != w2): print "Given graph IS direct." break except StopIteration: passif __name__ == '__main__': main()