C Programming Source Code Examples

PC to PC Communication in C

PC to PC Communication in C

This is a C program to demonstrate PC to PC Communication via RS232 port. Chat with only 3-wire connection. This program is tested with Turbo C++ editor Version 3.0. How ever, authors are not responsible for any damages that may happen to your computer. Please contact us if any problem exits.

Telephone Directory C Program

Telephone Directory Program in C

This is telephone directory program written in C and uses BGI Graphics to display data. The program takes Name, Phone Number, Mobile Number, Address and saves it in newly created file. The program also shows saved record on screen. User can find and delete the records too.

random numbers

Find the longest common sub-sequence between two strings: Dynamic Programming Algorithm

This C program finds the longest common sub-sequence between two strings. It implements the most famous dynamic programming algorithm. Dynamic programming is a computational technique used to solve complex problems by breaking them down into smaller subproblems and solving each subproblem only once, storing the solution to each subproblem and using it to solve larger problems.

Porter's Algorithm in C

Porter’s Algorithm in C

Originally written in 1979 at Computer Laboratory, Cambridge (England), it was reprinted in 1997 in the book “Readings in Information Retrieval”. Initially it was written in BCPL language. Here is the list of implementations in other programming languages including C, Java and Pearl implementations done by author himself.

Copying One File to another in C

Copying One File to another in C

This is a simple C program that copies the contents of one file onto another file. It is similar to Unix’s cp  command. This C program is called with two parameters i.e. the names of two files. The contents of the file referenced in second parameter are copied onto the file which is referenced by first parameter. 

Functions in C

C Programming: Example C Program to Understand Functions

This C source code demonstrates the implementation of fundamental mathematical operations using functions in the C programming language. It includes functions for calculating the square of a number, reading user input, and determining the area of a rectangle. The main program showcases the usage of these functions with specific values, providing a practical example for beginners to understand basic C programming concepts.

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