代码卡纸练习python

Question

I found out about Code Jam and decided to take a try on practice exercises. So I started with year 2008 qualification round problem A: Saving the Universe .

I found a solution for this problem from the achieves of Code Jam.

#!/usr/bin/python2.5

for case in range(input()):
    engines = set()
    for i in range(input()):
        engines.add(raw_input())
    s = 0
    t = engines.copy()
    for k in range(input()):
        q = raw_input()
        t.discard(q)
        if not len(t):
            s = s + 1
            t = engines.copy()
            t.discard(q)

    print "Case #%s: %s" % ((case + 1), s)

First of all I tried to pass the input from small file that is available for download. I opened the .in file with Wordpad, I copied everything and then ran the program and pasted the input to the shell. I got this error:

File "<string>", line 3
    for case in range(input()):
      ^
SyntaxError: invalid syntax

Am I doing something wrong?

Answer 1

You need to type in shell:

$ python yourfile.py <A-small-practice.in

This way each line of file will be correctly read by your program ('<' passes the file to the program as input)