Sort

The Shuffle and Sort Phase

The often-invisible middle stage of MapReduce that transfers, merges, and sorts intermediate data from every mapper to the right reducer.

Sorting and Grouping

Learn to order pipeline output with Sort-Object and cluster it into buckets with Group-Object, including combining both with Measure-Object for reports.

SORT and MERGE in COBOL

Learn how COBOL's built-in SORT and MERGE verbs reorder and combine files using the language's native sort work file mechanism.

DynamoDB Basics

Amazon DynamoDB is a fully managed, serverless NoSQL key-value and document database designed for single-digit-millisecond performance at any scale.

Bubble Sort in C

Master bubble sort in C: syntax, algorithm explanation, optimized code with early-exit flag, sample output, and O(n^2) complexity.

Merge Sort in C

Understand merge sort in C: divide-and-conquer recursion, syntax, a worked merge-step trace, full code, output, and O(n log n) complexity.

Quick Sort in C

Learn quick sort in C: partition logic, pivot selection, divide-and-conquer recursion, complete code, output, and O(n log n) average complexity.

Heap Sort and Counting Sort

How heap sort uses a binary heap for guaranteed O(n log n) in-place sorting, and how counting sort achieves linear time for bounded integers.

Topological Sort

Understand how to linearly order vertices of a Directed Acyclic Graph using Kahn's algorithm and DFS-based sorting.

Merge Sort as Divide and Conquer

See how merge sort applies divide, conquer, and combine to achieve guaranteed O(n log n) sorting.

Sorting and Ranking

How to order DataFrames and Series with sort_values and sort_index, and how to assign competitive ranks to values with the rank method and its tie-breaking str…

Enumerable Deep Dive

Go beyond map and select to explore Enumerable's full toolkit — sort_by, group_by, partition, each_with_object, lazy enumerators, and more — for expressive col…

Sorting and Cutting Text with sort, cut, uniq

Combine sort, cut, and uniq to reorder lines, extract specific columns, and deduplicate or count repeated entries in text data pipelines.