On Sat, Oct 3, 2009 at 6:54 AM, n00m <n...@narod.ru> wrote: > Hi, py.folk! > > I need your help to understand how > http://www.spoj.pl/problems/INOUTEST/ > can be passed in Python. <snip> > def foo(): > ##sys.stdin = open('D:/1583.txt', 'rt') > a = sys.stdin.readlines()
That line is probably a Very Bad Idea (TM) as it reads the *entire* enormous file into memory *at once*. It would probably be much better to iterate over the file, thus only reading one individual line at a time. I'm betting the massive malloc()ing involved with .readlines() is a large part of the slowness. <snip> > But it gets "Time Limit Exceeded" verdict. > Any ideas? Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
