GATE 2023 · CS - Forenoon
Consider the following program:
c
Which one of the following options represents the activation tree corresponding to the main function? The alternatives A–D are shown in the image.
int main()
{
f1();
f2(2);
f3();
return(0);
}
int f1()
{
return(1);
}
int f2(int X)
{
f3();
if (X==1)
return f1();
else
return (X*f2(X-1));
}
int f3()
{
return(5);
}