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February 28th, 2012, 10:47 PM
#1
How does this simple algorithm work?
I am studying this algorithm on Code Forces:
http://codeforces.com/problemset/problem/1/A
Why do most solutions simply multiply the standard input by 3 and divide by 2?
http://codeforces.com/problemset/status/1/problem/A
It seems to simple, but why does it work?
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