Anyone to help me understand this c code.

Question

I don't know where the 6 value goes .the int main block is so confusing.
/*need for explanation*/
#include <stdio.h>
int fact(int p);//function declaration
int main(){//main function block
int n=6,m;
m=fact(n);
printf("This the result:%d",m);
return 0;
}
int fact(int p){
int s=1,g;
for(g=p;g>=5;g--);
s=s*g;
return s;

Answer 1

We can call the function fact(6)
So fact function will receive p=6.
See this function return int number. This int assigns a value to m.
m = fact(6) ;

Answer 2

The code is not right and doesn't find the factorial of a number so I made some corrections to make it work right.
Also I have given a little description of each line for you to understand.
https://code.sololearn.com/c1nj1wrEX3R2/?ref=app