C language: rabbit reproduction problem

The logarithm of rabbit is Fibonacci sequence.

# include & ltstdio.h & gt

Long f (long n)

{

If (n<3) returns1;

Otherwise, it returns f (n-2)+f (n-1);

}

void main()

{

Printf ("A year later, there were %ld rabbits. \n "，f( 12))；

getch()；

}

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