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ENES
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Big O NotationRecursionTwo PointersSliding WindowSpace ComplexityWorst-case AnalysisMemoizationGreedy vs DP
StackQueueLinked ListHash TableBinary Search TreeHeapUnion-Find / Disjoint SetsRed-Black Tree
Bubble SortSelection SortInsertion SortQuick SortMerge SortHeap SortCounting SortRadix SortShell SortBucket Sort
Binary SearchLinear SearchJump SearchInterpolation SearchQuickselect / Median Finding
Breadth-First SearchDepth-First SearchDijkstra's AlgorithmPrim's AlgorithmKruskal's MSTTopological Sort
Fibonacci DPKnapsack 0/1Longest Common Subsequence
N-Queens ProblemSudoku SolverMaze Pathfinding
Tower of Hanoi
Sieve of Eratosthenes
45 algorithms·by Sai Rithwik Kukunuri

Worst-case Analysis — Concepts

Step 1:Average-case quicksort looks like O(n log n): partitions are reasonably balanced.
Variables
case==average
partitions==balanced
bound==O(n log n)