Help in Spoj- QTREE .Getting WA

#	User	Rating
1	tourist	3803
2	jiangly	3707
3	Benq	3627
4	ecnerwala	3584
5	orzdevinwang	3573
6	Geothermal	3569
6	cnnfls_csy	3569
8	Radewoosh	3542
9	jqdai0815	3532
10	gyh20	3447

#	User	Contrib.
1	maomao90	164
2	awoo	163
3	adamant	162
4	maroonrk	152
5	-is-this-fft-	151
6	nor	150
7	atcoder_official	147
8	TheScrasse	146
9	Petr	145
10	SecondThread	142

Solving This problem using Heavy-light Decomposition after reading from this blog. Tried all cases from spoj tool kit it works fine but still getting wrong answer. I have written a neat code. Please help

kishore_p's blog