Backtracking
21 solutions
- 0017 - Letter Combinations of a Phone Number (Medium)
- 0022 - Generate Parentheses (Medium)
- 0039 - Combination Sum (Medium)
- 0040 - Combination Sum II (Medium)
- 0051 - N-Queens (Hard)
- 0077 - Combinations (Medium)
- 0078 - Subsets (Medium)
- 0079 - Word Search (Medium)
- 0090 - Subsets II (Medium)
- 0093 - Restore IP Addresses (Medium)
- 0113 - Path Sum II (Medium)
- 0131 - Palindrome Partitioning (Medium)
- 0212 - Word Search II (Hard)
- 0491 - Non-decreasing Subsequences (Medium)
- 0494 - Target Sum (Medium)
- 0698 - Partition to K Equal Sum Subsets (Medium)
- 0967 - Numbers With Same Consecutive Differences (Medium)
- 1219 - Path with Maximum Gold (Medium)
- 1239 - Maximum Length of a Concatenated String with Unique Characters (Medium)
- 1443 - Minimum Time to Collect All Apples in a Tree (Medium)
- 1980 - Find Unique Binary String (Medium)