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    Recursion MCQ

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    17131A05P0 SACHIN DHITAL
    A stack is used to perform recursion. The output of doSomething(2,3) is 4, as it recursively calls the function, each time decrementing b by 1 until b reaches 1, at which point it returns a. If the base condition is not defined in recursion, it will result in a stack overflow. The output of something(4) is 24, as it recursively multiplies number by the return of the recursive call, until number reaches 0 and returns 1.

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    Recursion MCQ

    Uploaded by

    17131A05P0 SACHIN DHITAL
    1K views4 pages
    A stack is used to perform recursion. The output of doSomething(2,3) is 4, as it recursively calls the function, each time decrementing b by 1 until b reaches 1, at which point it returns a. If the base condition is not defined in recursion, it will result in a stack overflow. The output of something(4) is 24, as it recursively multiplies number by the return of the recursive call, until number reaches 0 and returns 1.

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    Recursion MCQ

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    A stack is used to perform recursion. The output of doSomething(2,3) is 4, as it recursively calls the function, each time decrementing b by 1 until b reaches 1, at which point it returns a. If the base condition is not defined in recursion, it will result in a stack overflow. The output of something(4) is 24, as it recursively multiplies number by the return of the recursive call, until number reaches 0 and returns 1.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    1K views4 pages

    Recursion MCQ

    Uploaded by

    17131A05P0 SACHIN DHITAL
    A stack is used to perform recursion. The output of doSomething(2,3) is 4, as it recursively calls the function, each time decrementing b by 1 until b reaches 1, at which point it returns a. If the base condition is not defined in recursion, it will result in a stack overflow. The output of something(4) is 24, as it recursively multiplies number by the return of the recursive call, until number reaches 0 and returns 1.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
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    of 4

    1) Which Data Structure is used to perform Recursion?

    a) Queue
    b) Stack
    c) Linked List
    d) Tree

    2) What’s the output of doSomething(2,3) in following code ?


    int doSomething(int a, int b) {
    if (b==1)
    return a;
    else
    return a + doSomething(a,b-1);
    }
    a)4
    b)2
    c)3
    d)6

    3) What’s happen if base condition is not defined in recursion?


    a) Stack underflow
    b) Stack Overflow
    c) None of these
    d) Both a and b
    4) What’s the output of something(4) following code?
    int something(int number) {
    if(number <= 0)
    return 1;
    else
    return number * something(number-1);
    }
    a) 12
    b) 24
    c) 1
    d) 0

    5) What will be the output of func(3,8) ?


    int func(int a, int b){
    if(b==0)
    return 0;
    if(b==1)
    return a;
    return a + func(a,b-1);
    }
    a) 11
    b) 24
    c) 22
    d) 21
    6) What will be the output of print(12)?
    void print(int n) {
    if (n == 0)
    return;
    System.out.println( n%2);
    print(n/2);
    }
    a) 0011
    b) 1100
    c) 1001
    d) 1000

    7) What will be the output of sum(8)?


    int sum(int n) {
    if (n==0) return n;
    else
    return n + sum(n-1);
    }
    a) 40
    b) 36
    c) 8
    d) 15
    8) What is the value of fun(4, 3)?
    int fun(int x, int y)
    {
    if (x == 0)
    return y;
    return fun(x - 1, x + y);
    }
    a) 13
    b) 12
    c) 9
    d) 10

    9) What is the output of this program?


    class recursion {
    int func (int n) {
    int result;
    result = func (n - 1);
    return result;
    }
    }
    class Output {
    public static void main(String args[]) {
    recursion obj = new recursion() ;
    System.out.print(obj.func(12));
    }
    }
    a) 0
    b) 1
    c) Compilation Error
    d) Runtime Error

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