Apple Interview Prep

Apple is known for being super secretive about its hiring process. But, I’ve tried to create some transparency in this post. This interview process is applicable especially for software and data interviews. Here are the typical Apple Interview Process :

1. CoderPad Interview / Phone Screen

2. System Design Technical Discussion → Again Phone screen.

If this is cleared, then Apple sets you up for a series of on site virtual interviews. This includes the below :

1. Coderpad technical Screening → Again Coding Questions

2. Object Oriented Design Interviews

3. Behavioral Interviews

4. System Design Interviews

5. Skip Level Manager Interview

There can be more interviews based on your role and requirements as well. But basically, a 7-8 round interviews is expected for a full time position.

Now, here’s the resources to prepare for Apple Interviews : For Coderpaid interviews, along with Blind 75 , make sure you leverage Apple Top 100 Most Asked Leetcode questions.

Apple Top 100 Most Asked Leetcode Questions :

1. [E] https://leetcode.com/problems/two-sum

2. [E] https://leetcode.com/problems/best-time-to-buy-and-sell-stock/

3. [M] https://leetcode.com/problems/3sum/

4. [E] https://leetcode.com/problems/longest-common-prefix/

5. [M] https://leetcode.com/problems/longest-substring-without-repeating-characters/

6. [H] https://leetcode.com/problems/median-of-two-sorted-arrays/

7. [E] https://leetcode.com/problems/maximum-subarray/

8. [M] https://leetcode.com/problems/add-two-numbers/

9. [M] https://leetcode.com/problems/number-of-islands/

10. [M] https://leetcode.com/problems/reverse-integer/

11. [M] https://leetcode.com/problems/lru-cache/

12. [E] https://leetcode.com/problems/move-zeroes/

13. [E] https://leetcode.com/problems/valid-parentheses/

14. [M] https://leetcode.com/problems/valid-sudoku/

15. [M] https://leetcode.com/problems/merge-intervals/

16. [E] https://leetcode.com/problems/happy-number/

17. [M] https://leetcode.com/problems/product-of-array-except-self/

18. [M] https://leetcode.com/problems/decode-string/

19. [M] https://leetcode.com/problems/longest-palindromic-substring/

20. [M] https://leetcode.com/problems/container-with-most-water/

21. [M] https://leetcode.com/problems/search-in-rotated-sorted-array/

22. [M] https://leetcode.com/problems/combination-sum/

23. [M] https://leetcode.com/problems/rotate-image/

24. [M] https://leetcode.com/problems/spiral-matrix/

25. [M] https://leetcode.com/problems/unique-paths/

26. [M] https://leetcode.com/problems/reverse-linked-list-ii/

27. [H] https://leetcode.com/problems/word-ladder/

28. [M] https://leetcode.com/problems/word-break/

29. [M] https://leetcode.com/problems/find-the-celebrity/

30. [M] https://leetcode.com/problems/random-pick-with-weight/

31. [E] https://leetcode.com/problems/roman-to-integer/

32. [M] https://leetcode.com/problems/letter-combinations-of-a-phone-number/

33. [M] https://leetcode.com/problems/generate-parentheses/

34. [H] https://leetcode.com/problems/merge-k-sorted-lists/

35. [M] https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/

36. [M] https://leetcode.com/problems/powx-n/

37. [M] https://leetcode.com/problems/sort-colors/

38. [E] https://leetcode.com/problems/valid-palindrome/

39. [E] https://leetcode.com/problems/min-stack/

40. [M] https://leetcode.com/problems/house-robber/

41. [E] https://leetcode.com/problems/first-bad-version/

42. [H] https://leetcode.com/problems/find-median-from-data-stream/

43. [M] https://leetcode.com/problems/remove-duplicate-letters/

44. [M] https://leetcode.com/problems/valid-parenthesis-string/

45. [M] https://leetcode.com/problems/max-consecutive-ones-iii/

46. [E] https://leetcode.com/problems/design-hashmap/

47. [E] https://leetcode.com/problems/palindrome-number/

48. [H] https://leetcode.com/problems/regular-expression-matching/

49. [M] https://leetcode.com/problems/integer-to-roman/

50. [E] https://leetcode.com/problems/merge-two-sorted-lists/

51. [E] https://leetcode.com/problems/remove-duplicates-from-sorted-array/

52. [H] https://leetcode.com/problems/sudoku-solver/

53. [H] https://leetcode.com/problems/first-missing-positive/

54. [M] https://leetcode.com/problems/multiply-strings/

55. [M] https://leetcode.com/problems/group-anagrams/

56. [H] https://leetcode.com/problems/longest-valid-parentheses/

57. [M] https://leetcode.com/problems/word-search/

58. [E] https://leetcode.com/problems/merge-sorted-array/

59. [E] https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/

60. [E] https://leetcode.com/problems/pascals-triangle/

61. [M] https://leetcode.com/problems/maximum-product-subarray/

62. [E] https://leetcode.com/problems/majority-element/

63. [M] https://leetcode.com/problems/rotate-array/

64. [E] https://leetcode.com/problems/count-primes/

65. [H] https://leetcode.com/problems/word-search-ii/

66. [H] https://leetcode.com/problems/count-of-smaller-numbers-after-self/

67. [M] https://leetcode.com/problems/flatten-nested-list-iterator/

68. [M] https://leetcode.com/problems/top-k-frequent-elements/

69. [H] https://leetcode.com/problems/frog-jump/

70. [M] https://leetcode.com/problems/next-greater-element-ii/

71. [M] https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree/

72. [M] https://leetcode.com/problems/insert-delete-getrandom-o1/

73. [E] https://leetcode.com/problems/reverse-words-in-a-string-iii/

74. [E] https://leetcode.com/problems/middle-of-the-linked-list/

75. [M] https://leetcode.com/problems/3sum-closest

76. [M] https://leetcode.com/problems/4sum

77. [M] https://leetcode.com/problems/permutations/

78. [H] https://leetcode.com/problems/n-queens/

79. [M] https://leetcode.com/problems/minimum-path-sum/

80. [E] https://leetcode.com/problems/sqrtx/

81. [E] https://leetcode.com/problems/climbing-stairs

82. [M] https://leetcode.com/problems/set-matrix-zeroes/

83. [H] https://leetcode.com/problems/largest-rectangle-in-histogram/

84. [H] https://leetcode.com/problems/maximal-rectangle

85. [E] https://leetcode.com/problems/symmetric-tree/

86. [M] https://leetcode.com/problems/binary-tree-level-order-traversal/

87. [E] https://leetcode.com/problems/maximum-depth-of-binary-tree/

88. [M] https://leetcode.com/problems/longest-consecutive-sequence/

89. [H] https://leetcode.com/problems/word-break-ii/

90. [E] https://leetcode.com/problems/intersection-of-two-linked-lists/

91. [M] https://leetcode.com/problems/course-schedule/

92. [M] https://leetcode.com/problems/implement-trie-prefix-tree/

93. [E] https://leetcode.com/problems/contains-duplicate/

94. [M] https://leetcode.com/problems/maximal-square/

95. [M] https://leetcode.com/problems/basic-calculator-ii/

96. [M] https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/

97. [E] https://leetcode.com/problems/delete-node-in-a-linked-list/

98. [M] https://leetcode.com/problems/search-a-2d-matrix-ii/

99. [H] https://leetcode.com/problems/integer-to-english-words/

100. [M] https://leetcode.com/problems/h-index/

To prepare for System Design Interviews , use the below resources :

System Design : Link

Advanced System Design : Link

The next interview to prepare for is Grokking the object oriented Design Interview :

Object Oriented Design : Link

Case Studies to Prepare for here are :

Design a Library Management System
Design a Parking Lot
Design Amazon - Online Shopping System
Design Stack Overflow
Design a Movie Ticket Booking System
Design an ATM
Design an Airline Management System
Design Blackjack and a Deck of Cards
Design a Hotel Management System
Design a Restaurant Management system
Design Chess
Design an Online Stock Brokerage System
Design a Car Rental System
Design LinkedIn
Design Cricinfo
Design Facebook - a Social Network

These resources should be helpful to crack the apple interviews should you get one.

Hope this is helpful!.