[link] int* k vs int *k vs int * k

https://www.quora.com/In-simple-terms-what-is-the-difference-between-int*-and-int-*

http://programmers.stackexchange.com/questions/7305/int-i-or-int-i-or-int-i

[link] int* vs int& (포인터 vs 참조자)

참조자(Reference)와 포인터(Pointer)의 차이
http://mypensieve.tistory.com/224