These are the hand-curated and well researched 50 questions you are most likely to be asked during the coding interview. Whether you are appearing for a Java Interview, CS Interview, C/C++ Interview, or any other Coding interview you will be certainly asked some of the questions from the list. You can prepare their answer, solve them using the choice of your programming language and you can also check your readiness to face the coding interview using MockRabbit app. The NLP/AI/ML powered app will throw these questions to you and analyse your answers to tell you instantly about how better you are prepared to answer these questions. The regular mock practice of interview question will help you gain the confidence needed to crack the coding interview. Download MockRabbit app here: https://goo.gl/8PNNtn

1. 50 Must Know Coding
Interview Questions

2. Coding interview questions
comprises of;
Arrays, Linked List, Variables, Binary Tree and Other
Questions related to programming language construct
Here you’ll find 50 most relevant questions that you can
certainly expect to be asked during the interview.
You should frame your own answers reading through the
resources, solving programming exercises and framing
answers based on your understanding.
Choose programming language of your choice to answer
these questions

3. Coding Interview Questions on Array

4. How do you find the largest and
smallest number in an unsorted
integer array?
Que.1

5. How do you find the missing number
in a given integer array of 1 to 50?
Que.2

6. How do you find the largest and
smallest number in an unsorted
integer array?
Que.3

7. How do you find all pairs of an integer
array whose sum is equal to a given
number?
Que.4

8. How do you find duplicate numbers in
an array if it contains multiple
duplicates?
Que.5

9. How are duplicates removed from a
given array in C/C++?
Que.6

10. How is an integer array sorted in place
using the quicksort algorithm?
Que.7

11. How do you remove duplicates from
an array in place?
Que.8

12. How do you reverse an array in place
in C/C++?
Que.9

13. How are duplicates removed from an
array without using any library?
Que.10

14. Linked List Coding Interview Questions

15. How do you find the middle element of
a singly linked list in one pass?
Que.1

16. How do you check if a given linked list
contains a cycle? How do you find the
starting node of the cycle?
Que.2

17. How do you reverse a linked list?
Que.3

18. How do you reverse a singly linked list
without recursion?
Que.4

19. How are duplicate nodes removed in
an unsorted linked list?
Que.5

20. How do you find the length of a singly
linked list?
Que.6

21. How do you find the third node from
the end in a singly linked list?
Que.7

22. How do you find the sum of two linked
lists using Stack?
Que.8

23. String Related Interview Questions

24. How do you print duplicate characters
from a string?
Que.1

25. How do you check if two strings are
anagrams of each other?
Que.2

26. How do you print the first non-
repeated character from a string?
Que.3

27. How can a given string be reversed
using recursion?
Que.4

28. How do you check if a string contains
only digits?
Que.5

29. How are duplicate characters found in
a string?
Que.6

30. How do you count a number of vowels
and consonants in a given string?
Que.7

31. How do you count the occurrence of a
given character in a string?
Que.8

32. How do you find all permutations of a
string?
Que.9

33. How do you reverse words in a given
sentence without using any library
method?
Que.10

34. How do you check if two strings are a
rotation of each other?
Que.11

35. How do you check if a given string is a
palindrome?
Que.12

36. Other Programming Concept Related
Interview Questions

37. How is a binary search tree
implemented?
Que.1

38. How do you perform preorder
traversal in a given binary tree?
Que.2

39. How do you traverse a given binary
tree in preorder without recursion?
Que.3

40. How do you perform an inorder
traversal in a given binary tree?
Que.4

41. How do you print all nodes of a given
binary tree using inorder traversal
without recursion?
Que.5

42. How do you implement a postorder
traversal algorithm?
Que.6

43. How do you traverse a binary tree in
postorder traversal without
recursion?
Que.7

44. How are all leaves of a binary search
tree printed?
Que.8

45. How do you count a number of leaf
nodes in a given binary tree?
Que.9

46. How do you perform a binary search
in a given array?
Que.10

47. Miscellaneous Programming Related
Interview Questions

48. How is a bubble sort algorithm
implemented?
Que.1

49. How is an iterative quicksort algorithm
implemented?
Que.2

50. How do you implement an insertion
sort algorithm?
Que.3

51. How is a merge sort algorithm
implemented?
Que.4

52. How do you implement a bucket sort
algorithm?
Que.5

53. How do you implement a counting
sort algorithm?
Que.6

54. How is a radix sort algorithm
implemented?
Que.7

55. How do you swap two numbers
without using the third variable?
Que.8

56. How do you check if two rectangles
overlap with each other?
Que.9

57. How do you design a vending
machine?
Que.10

58. Once you are prepared to answer these
questions and their solutions, logon to
MockRabbit app and check whether you
can answer these questions confidently.