Question

DATA STRUCTURES  

What is returned when calling this method with the singly list contains (1,5,5,7,8)  

public static int m1(SinglyList  list1)

{

  if(list1.size()!=2)

return list1.removeFirst()+m1(list1);

     return s;

}

Answer 1

In the above code snippet, 's' is not defined.

Here also removeFirst () is not defined

Returning or addition of an array removeFirst(as the name suggests) and m1(list) is possibly not possible.

if they return length after removal of first and integer in case of s. then the following will hold true.

def abc(list1):
    s=0#assumed
    if(len(list1)!=2):
        
        return (len(list1)-1)+abc(list1[1:])#[1:] represents the list without the first element
    return s
a=[1,5,5,7,8]
print(abc(a))

The expected answer returned is 9

A screenshot is provided for viewing

There is a recursive call function here.

i would like to show you at everystep how the return function is getting called.

for further clarification comment below.