I just see this problem in Topcoder forum: http://apps.topcoder.com/forums/?module=Thread&threadID=783143&start=0&mc=3. I don't understand the solution. Can anyone explain or solve it?
I just see this problem in Topcoder forum: http://apps.topcoder.com/forums/?module=Thread&threadID=783143&start=0&mc=3. I don't understand the solution. Can anyone explain or solve it?
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