Pattern Index
LeetCode Problems by Pattern
3,654 interview problems, tagged by pattern and ranked by importance by how often each shows up in real coding interviews. Pick a pattern and work top-down.
Arrays & Hashing1013 problems · 7 patternsIMP 100Two Pointers138 problems · 3 patternsIMP 95Binary Search150 problems · 4 patternsIMP 95Trees253 problems · 5 patternsIMP 95Graphs202 problems · 6 patternsIMP 95Sliding Window122 problems · 3 patternsIMP 93Core DP418 problems · 7 patternsIMP 89Stack150 problems · 2 patternsIMP 84Backtracking80 problems · 5 patternsIMP 84Heap / Priority Queue99 problems · 3 patternsIMP 84Greedy319 problems · 5 patternsIMP 79Linked List48 problems · 3 patternsIMP 74Intervals49 problems · 2 patternsIMP 74Tries39 problems · 1 patternIMP 53Advanced Graphs40 problems · 2 patternsIMP 53Bit Manipulation110 problems · 1 patternIMP 47Advanced DP63 problems · 2 patternsIMP 42Math & Geometry361 problems · 5 patternsIMP 42
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