View Compilation Error

0_0_19219364_4875.c:22:11: error: conflicting types for 'fib'
 long long fib(int num)
           ^
0_0_19219364_4875.c:12:18: note: previous implicit declaration of 'fib' was here
   printf("&ld\n",fib(num));
                  ^
0_0_19219364_4875.c: In function 'fib':
0_0_19219364_4875.c:24:9: error: 'g' undeclared (first use in this function)
 int f=1;g=1;
         ^
0_0_19219364_4875.c:24:9: note: each undeclared identifier is reported only once for each function it appears in