Book - Cracking The Coding Interview Questions
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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
Magic Index
93
Easy
20 mins
1909
Search In Rotated Sorted Array
127
Moderate
30 mins
8496
Intersection of Two Linked Lists
77
Easy
25 mins
4193
Ways To Make Coin Change
26
Moderate
20 mins
7923
Find Number Of Islands
28
Moderate
34 mins
999
Trapping Rain Water
31
Moderate
15 mins
2366
Maximum Subarray Sum
383
Hard
35 mins
29229
LRU Cache Implementation
26
Moderate
25 mins
1252
N Queens
39
Hard
55 mins
1372
Count Ways To Reach The N-th Stairs
85
Moderate
30 mins
8363
Palindrome Linked List
53
Easy
20 mins
3244
Partial BST
20
Moderate
25 mins
3075
Add Two Numbers As Linked Lists ll
157
Moderate
10 mins
1679
Group Anagrams
6
Moderate
30 mins
156
Two Sum
495
Easy
10 mins
5016
Search In A Row Wise And Column Wise Sorted Matrix
26
Moderate
15 mins
1473
Trailing Zeros in Factorial
18
Moderate
15 mins
445
Majority element
69
Easy
15 mins
6350
Swap Number Without Temporary Variable
8
Easy
15 mins
664
Subtree of Another Tree
9
Easy
10 mins
1060
Compress the String
14
Moderate
25 mins
376
Tic-Tac-Toe Winner
4
Easy
20 mins
44
Generate all parenthesis
15
Moderate
30 mins
326
Predecessor and Successor In BST
8
Moderate
25 mins
569
Check If Path Exists
3
Easy
10 mins
190
Magic Index NEW
Easy
93 upvotes
Search In Rotated Sorted Array NEW
Moderate
127 upvotes
Intersection of Two Linked Lists NEW
Easy
77 upvotes
Ways To Make Coin Change NEW
Moderate
26 upvotes
Find Number Of Islands NEW
Moderate
28 upvotes
Trapping Rain Water NEW
Moderate
31 upvotes
Maximum Subarray Sum NEW
Hard
383 upvotes
LRU Cache Implementation NEW
Moderate
26 upvotes
N Queens NEW
Hard
39 upvotes
Count Ways To Reach The N-th Stairs NEW
Moderate
85 upvotes
Palindrome Linked List NEW
Easy
53 upvotes
Partial BST NEW
Moderate
20 upvotes
Add Two Numbers As Linked Lists ll NEW
Moderate
157 upvotes
Group Anagrams NEW
Moderate
6 upvotes
Two Sum NEW
Easy
495 upvotes
Search In A Row Wise And Column Wise Sorted Matrix NEW
Moderate
26 upvotes
Trailing Zeros in Factorial NEW
Moderate
18 upvotes
Majority element NEW
Easy
69 upvotes
Swap Number Without Temporary Variable NEW
Easy
8 upvotes
Subtree of Another Tree NEW
Easy
9 upvotes
Compress the String NEW
Moderate
14 upvotes
Tic-Tac-Toe Winner NEW
Easy
4 upvotes
Generate all parenthesis NEW
Moderate
15 upvotes
Predecessor and Successor In BST NEW
Moderate
8 upvotes
Check If Path Exists NEW
Easy
3 upvotes
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