#	User	Rating
1	tourist	4009
2	jiangly	3823
3	Benq	3738
4	Radewoosh	3633
5	jqdai0815	3620
6	orzdevinwang	3529
7	ecnerwala	3446
8	Um_nik	3396
9	ksun48	3390
10	gamegame	3386

#	User	Contrib.
1	cry	167
2	Um_nik	163
3	maomao90	162
3	atcoder_official	162
5	adamant	159
6	-is-this-fft-	158
7	awoo	157
8	TheScrasse	154
9	Dominater069	153
9	nor	153

Im sure that everyone of you have encountered with this kind of questions where they asked how much operation are needed to sort the array or how many swaps needed u get the point , can anyone tell me how to approach this kind of problems . And not only approach tell me how to approach questions in which they always ask to find some operation . please give me some resources or some blog link if possible . Thank you in advance .