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Commits on Nov 24, 2025

• Add Calculator class with lambda expression support for arithmetic operations

  hoanglord

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Commits on Nov 17, 2025

• Add StackOfIntegers class and TestStackOfIntegers class for stack implementation and testing

  hoanglord

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Commits on Nov 16, 2025

• Fix stopwatch timing and optimize selection sort implementation

  hoanglord

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Commits on Nov 15, 2025

• Add TestStopWatch class to measure execution time of selection sort and implement StopWatch functionality

  hoanglord

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Commits on Nov 14, 2025

• Refactor TwoSum class: fix syntax error and improve method visibility

  hoanglord

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Commits on Nov 11, 2025

• Remove TwoSum class implementation and related code

  hoanglord

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Commits on Nov 9, 2025

• Add CountOccurrences class and corresponding unit tests for integer frequency counting

  hoanglord

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Commits on Nov 7, 2025

• Add CountOccurrences class to count and display occurrences of integers in a specified range

  hoanglord

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Commits on Nov 5, 2025

• Add AssignGrades class for grade assignment based on student scores; remove SortArray and BT classes

  hoanglord

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Commits on Oct 30, 2025

• Add transaction processing and validation features in SortArray and Utilities

  hoanglord

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Commits on Oct 29, 2025

• update sort method

  hoanglord

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Commits on Oct 28, 2025

• updated Array ex

  hoanglord

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Commits on Oct 22, 2025

• updated toan tu 3 ngoi

  hoanglord

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• update checklsit

  hoanglord

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Commits on Oct 19, 2025

• updated clean code for GuessBirthDay.java.

  hoanglord

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• update GuessBirthDay ex

  hoanglord

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Commits on Oct 18, 2025

• update java If_else exersise

  hoanglord

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Commits on Oct 14, 2025

• add bt1

  hoanglord

  committed
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