Backtracking

Engineering Articles & Deep Dives

Backtracking Pattern and most asked problems like Subsets, Permutations, Combination Sum, N-Queens, and Word Search.

All Array / String Array + HashMap Sliding Window Two Pointer Linked List Binary Search Stack Matrix Trees DFS/BFS + BST Backtracking Heap and Priority Queue Graph + Topological Sort Dynamic Programming Prefix Sum Greedy Interval Divide and Conquer Union-Find (Disjoint Set Union) Trie Bit Manipulation Math / Number Theory
Backtracking
Subsets [Medium]
24 Aug 2026 2 min read
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Backtracking
Permutations [Medium]
24 Aug 2026 2 min read
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Backtracking
Combination Sum [Medium]
24 Aug 2026 2 min read
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Backtracking
Combination Sum II [Medium]
22 Sep 2026 2 min read
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Backtracking
Letter Combinations of a Phone Number [Medium]
22 Sep 2026 2 min read
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Backtracking
Word Search [Medium]
24 Aug 2026 3 min read
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Backtracking
N-Queens [Hard]
03 Sep 2026 3 min read
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