1 int foo (int, int, int);
2 int bar (int, int, int);
6 if (foo (5, 10, 21) != 12)
9 if (bar (9, 12, 15) != 150)
15 int foo (int x
, int y
, int z
)
17 return (x
+ y
+ z
) / 3;
20 int bar (int x
, int y
, int z
)
22 return foo (x
* x
, y
* y
, z
* z
);