binary indexed tree--spoj

Правка en1, от vsanjay_nitdgp, 2015-08-26 08:13:58

hello sir/mam.

recently i learnt binary indexed tree.

i did two probelms now...

but i got stuck for the problem below.....

http://www.spoj.com/problems/INVCNT/

could any one give clear explaination of doing this problem....

i would be very thankful to you...

thanks in advance...

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en1 Английский vsanjay_nitdgp 2015-08-26 08:13:58 327 Initial revision (published)