1 int foo (int, int, int); 2 int bar (int, int, int); 3 main(void)4int main (void) 5 { 6 if (foo (5, 10, 21) != 12) 7 abort (); 8 9 if (bar (9, 12, 15) != 150) 10 abort (); 11 12 exit (0); 13 } 14 foo(int x,int y,int z)15int foo (int x, int y, int z) 16 { 17 return (x + y + z) / 3; 18 } 19 bar(int x,int y,int z)20int bar (int x, int y, int z) 21 { 22 return foo (x * x, y * y, z * z); 23 } 24