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Here are a few programs I have written in my free time for different purposes. Brief explanations are attached to the programs; they are transmitted in a mode as it is.

1) Program FileSeparator.exe allows you to cut any file into pieces. The explanatory is enclosed to the program.

2) Program ComDir.exe (new version, 2022) compares the contents of two folders. If you tick the last (fourth) CheckBox, the utility will give the complete lists of different files (the compared folders) and then you can copy (delete) files from one folder to another.

3) Program Trees.exe(ascii) allows to draw a binary tree on the screen and work with it. It is useful to those who study the binary trees and programs them in C or Pascal. The program has a Help, as well as examples of binary trees and programs with binary trees. There is also Unicode-version: Trees.exe(unicode).

4) Program Sim.exe will help to learn a simplex method rather quickly. All steps of the algorithm are explained.

5) IdenticalFiles - small and smart utility finds duplicate files on your computer.

6) Program Numbers.exe (new unicode version, 2013) performs a series of calculations with natural numbers: records the sequence of prime numbers in the archives, finds pairs of prime numbers-twins, decomposes numbers into a product of primes, builds Fibonacci numbers. Languages: english, russian.

7) Program Table.exe is a computer realization of a mathematical problem from the All-Union Olympiada of schoolboys (1975). The size of the new table is defined by movement of the mouse with the pressed left button.

8) Joke-Task.exe.

9) Arrange the Queen on a square Board (2020) will help the program QueensProblem.
Information in the attached text file.

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