C :: Algorithm To Calculate Highest Value?

Now I know there's a simple way to calculate highest value. But here i have this algorithm which i understood part of it.

I know that *largest is point to the first element of begin which is 5. so in the first if statement its 5<5 at the first iteration ?

// i marked the parts i didnt understand with " //"

Code:
#include <stdio.h>
int *print(int *begin ,int *end ){
if(begin==end)
return 0;
int *largest = begin;

[Code] ....