YiXianMaNong: Add some sorts in YiXianMaNong's blog

I will study the all arithmetic programs in YiXianMaNong's blog.

Signed-off-by: Eric Zhou <zhoubb.eric@gmail.com>
ZeroBasis: the book examples in the book of ZeroBasis

Signed-off-by: Eric Zhou <zhoubb.eric@gmail.com>
Classics: Add bintree's ops and binary-heap

Signed-off-by: Eric Zhou <zhoubb.eric@gmail.com>
Classics: Add a temporary directories for study

	Classics/study/-->for store my study files

Signed-off-by: Eric Zhou <zhoubb.eric@gmail.com>
Classics: Add the normal sort arithmetic

	Also, delete the sort before written.

Signed-off-by: Eric Zhou <zhoubb.eric@gmail.com>
Classics: Add the operations of disjoint_set.

	Also, I should do some exerices more.

Signed-off-by: Eric Zhou <zhoubb.eric@gmail.com>
Classics: Add the operations of joseph_circle

	Also, I should do more

Signed-off-by: Eric Zhou <zhoubb.eric@gmail.com>
Exercise: Add a new directory for exercise

	In this directory, I will write some programs form web.

Signed-off-by: Eric Zhou <zhoubb.eric@gmail.com>