Level 5

Backtracking

TUTORIALS

1. Recursion basics - using factorial View Tutorial
2. Complexity analysis of recursive programs View Tutorial
3. Why recursion is not always good View Tutorial
4. Time Complexity analysis of recursion View Tutorial
5. Space complexity analysis of recursion View Tutorial
6. Backtracking View Tutorial
7. Backtracking Pseudocode View Tutorial
Subsets
Problem Score Companies Time Status
Subset 250 53:29
Combinations 300 38:05
Combination Sum 300 51:51
Combination Sum II 300 34:15
Subsets II 300 33:00
Bruteforce builder
Problem Score Companies Time Status
Letter Phone 250 46:31
Palindrome Partitioning 300 57:18
Generate all Parentheses II 350
44:05
Pruned builder
Problem Score Companies Time Status
Palindrome Partitioning 300 57:18
Generate all Parentheses II 350
44:05
NQueens 550 62:16
Sudoku 700 56:22
Permutations
Problem Score Companies Time Status
Permutations 350 34:08
Maths and backtracking
Problem Score Companies Time Status
Gray Code 350
49:20
Kth Permutation Sequence 350 70:04
Game solving
Problem Score Companies Time Status
NQueens 550 62:16
Sudoku 700 56:22