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scanf and printf are much more expensive than getchar and putchar.

Posted by hitlion at 2008-08-04 20:57:34 on Problem 2602

Without doubt, scanf and printf are expensive functions. I recognize that
until getting TLE of this problem. Here are the comparision:
    #1:  scanf + printf       TLE;
    #2:  getchar + printf   925ms;
    #3:  getchar + putchar  125ms;
You see, the difference is amazing!

Followed by:

Re:scanf and printf are much more expensive than getchar and putchar. (34) zwd05 2008-08-04 21:00:44

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