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MSDN

1+3+5+...+(2n-1)=n*n

Rank by solved	555 out of 140249
Problems solved	346 out of 1148
Rank by rating	511 out of 140249
Rating	134378 out of 1581367

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Neighbours

Rank	Author	Rating	Solved	Last AC
552	Yuriy Nazarov [Samara SAU]	81190	347	3 Sep 2020 21:09
553	taobingxue	220146	346	10 Jul 2014 23:56
554	fangge518	215784	346	15 Nov 2012 16:48
555	MSDN	134378	346	18 Nov 2010 15:21
556	airibo	108134	346	10 Aug 2016 04:53
557	Soporboy Botirov	101957	346	25 Oct 2015 00:05
558	igormsu	93383	346	6 Jul 2019 22:46