Top Recursion And Backtracking Interview Questions
Topics
Company
Difficulty
Problem Title
Difficulty
Avg Time to solve
Attempted
Reverse Stack Using Recursion
17
Easy
21 mins
234
Look-And-Say Sequence
4
Easy
15 mins
39
Print Permutations - String
20
Easy
30 mins
194
Sudoku?
60
Moderate
40 mins
173
Word Break-1
20
Moderate
36 mins
137
Rat In a Maze All Paths
99
Moderate
40 mins
217
N Queens
12
Hard
55 mins
129
Pair Swap
4
Moderate
40 mins
106
Leaves One Level Apart
4
Moderate
40 mins
83
Right View
1
Moderate
35 mins
120
Validate BST
4
Moderate
25 mins
382
Palindrome Partitioning
2
Hard
25 mins
112
Convert Bst To The Greater Sum Tree
2
Moderate
30 mins
153
Maze with N doors and 1 Key
2
Moderate
15 mins
194
Permutations
1
Moderate
10 mins
70
Reverse Alternate K nodes
1
Easy
10 mins
27
Remove Consecutive Duplicates
4
Easy
mins
363
Merge Sort Linked List
4
Moderate
10 mins
48
Sort Stack
7
Easy
20 mins
88
Factor Combinations
4
Moderate
35 mins
19
Letter Case Permutation
0
Moderate
15 mins
20
Count of Matches in Tournament
2
Easy
20 mins
56
Ninja And Flip Game
1
Easy
15 mins
6
Increasing Order Search Tree
3
Easy
15 mins
12
What will be the ‘k-th’ bit?
2
Moderate
20 mins
16
Reverse Stack Using Recursion NEW
Easy
17 upvotes
Look-And-Say Sequence NEW
Easy
4 upvotes
Print Permutations - String NEW
Easy
20 upvotes
Sudoku? NEW
Moderate
60 upvotes
Word Break-1 NEW
Moderate
20 upvotes
Rat In a Maze All Paths NEW
Moderate
99 upvotes
N Queens NEW
Hard
12 upvotes
Pair Swap NEW
Moderate
4 upvotes
Leaves One Level Apart NEW
Moderate
4 upvotes
Right View NEW
Moderate
1 upvote
Validate BST NEW
Moderate
4 upvotes
Palindrome Partitioning NEW
Hard
2 upvotes
Convert Bst To The Greater Sum Tree NEW
Moderate
2 upvotes
Maze with N doors and 1 Key NEW
Moderate
2 upvotes
Permutations NEW
Moderate
1 upvote
Reverse Alternate K nodes NEW
Easy
1 upvote
Remove Consecutive Duplicates NEW
Easy
4 upvotes
Merge Sort Linked List NEW
Moderate
4 upvotes
Sort Stack NEW
Easy
7 upvotes
Factor Combinations NEW
Moderate
4 upvotes
Letter Case Permutation NEW
Moderate
0 upvotes
Count of Matches in Tournament NEW
Easy
2 upvotes
Ninja And Flip Game NEW
Easy
1 upvote
Increasing Order Search Tree NEW
Easy
3 upvotes
What will be the ‘k-th’ bit? NEW
Moderate
2 upvotes
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