Master the essential algorithms and data structures that are tested in product based company interviews by practicing all the solutions from “Cracking the Coding Interview (Indian Edition)” book by Gayle laakmann McDowell, which is only available on CodeStudio. Students will be able find the textbook solutions and they can practise problems online.

Problem Title

Difficulty

Avg Time to solve

Attempted

Word Rectangle

1

Hard

15 mins

9

Capacity To Ship Packages Within D Days

5

Moderate

15 mins

45

Ninja Ant

1

Moderate

30 mins

9

Word Distance

3

Easy

15 mins

95

XML encoding

0

Moderate

15 mins

3

Equal Number Of Boys And Girls

1

Moderate

35 mins

70

Re-Formating

2

Moderate

10 mins

25

Longest Word

4

Moderate

20 mins

10

Pattern Matching

4

Moderate

15 mins

32

Find the kth number with prime factors 3, 5 and 7

1

Easy

10 mins

76

Ninja and Binary Tree

0

Moderate

25 mins

4

Flip Bit to Win

4

Easy

20 mins

94

Kevin and the tower of coins

0

Moderate

25 mins

38

Shortest Supersequence

0

Moderate

30 mins

20

Find all occurrences of multiple patterns

1

Hard

45 mins

14

List of Depths

3

Easy

10 mins

31

Find the maximum element in the array after update operations.

0

Moderate

15 mins

14

Faulty Key

0

Moderate

25 mins

40

Missing Number

2

Moderate

30 mins

38

Slot Game

3

Easy

10 mins

110

Robot Grid

1

Moderate

35 mins

85

Phone Code

0

Hard

50 mins

16

Find similarities between two arrays.

0

Easy

20 mins

64

Median in a stream

5

Hard

50 mins

79

Sort an array in wave form

10

Easy

10 mins

122

Word Rectangle

Hard

1 upvote

Capacity To Ship Packages Within D Days

Moderate

5 upvotes

Ninja Ant

Moderate

1 upvote

Word Distance

Easy

3 upvotes

XML encoding

Moderate

0 upvotes

Equal Number Of Boys And Girls

Moderate

1 upvote

Re-Formating

Moderate

2 upvotes

Longest Word

Moderate

4 upvotes

Pattern Matching

Moderate

4 upvotes

Find the kth number with prime factors 3, 5 and 7

Easy

1 upvote

Ninja and Binary Tree

Moderate

0 upvotes

Flip Bit to Win

Easy

4 upvotes

Kevin and the tower of coins

Moderate

0 upvotes

Shortest Supersequence

Moderate

0 upvotes

Find all occurrences of multiple patterns

Hard

1 upvote

List of Depths

Easy

3 upvotes

Find the maximum element in the array after update operations.

Moderate

0 upvotes

Faulty Key

Moderate

0 upvotes

Missing Number

Moderate

2 upvotes

Slot Game

Easy

3 upvotes

Robot Grid

Moderate

1 upvote

Phone Code

Hard

0 upvotes

Find similarities between two arrays.

Easy

0 upvotes

Median in a stream

Hard

5 upvotes

Sort an array in wave form

Easy

10 upvotes

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