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PROBLEMS/BACKTRACKING/COMBINATIONS / SUBSETS

Combinations / Subsets Problems

40 Combinations / Subsets problems on LeetCode, a Backtracking interview pattern, ranked by importance (how often it comes up in real interviews). Difficulty (ELO) and importance shown per problem.

#PROBLEMDIFFELOIMPPATTERNS
1SubsetsEasy121192
General Bit Manipulation
2Combination SumEasy131790
Unbounded Knapsack
3CombinationsEasy125888
4Generate ParenthesesEasy137585
Linear Recurrence DP
5Subsets IIEasy136184
Sorting + Comparison
+ 35 more Combinations / Subsets problems, see all in the explorer →
MORE BACKTRACKING PATTERNS
PermutationsCombinations / SubsetsConstraint Satisfaction (N-Queens)String Partitioning (Palindrome Partitioning)Path Finding with Backtracking
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