C Program to sort a linked list.

Data structures using C, Linked list is a data structure in which the objects are arranged in a linear order. In this program, we sort the list elements in ascending order. Read more about C Programming Language . /************************************************************ You can use all the programs on www.c-program-example.com* for personal and learning purposes. For permissions to …

C Program to reverse the first n characters in a file.

This program reads a filename and a count n from the command line, reads the first n characters from the file, reverses them in-place using a two-pointer swap, and prints the result. It demonstrates combining command-line argument parsing, file I/O with fread(), and in-place string reversal in a single practical program. The original post used …

C program which copies one file contents to another file.

Copying a file in C demonstrates how to combine file I/O functions (fopen, fgetc, fputc, fclose) with command-line arguments to build a practical utility. The program reads filenames from argv, opens both files, copies byte-by-byte, and reports how many bytes were transferred. The original version used conio.h, process.h, void main(), and stored the return value …

Generate Random Numbers in C – rand() and srand() Explained

This C program to generate random numbers uses the standard library functions rand() and srand(). rand() returns a pseudo-random integer between 0 and RAND_MAX (at least 32767). “Pseudo-random” means the sequence is determined by a starting value called the seed. Seeding with time(NULL) ensures a different sequence every time the program runs. Key Functions Function …

sleep() Function in C — Portable Example

This C program demonstrates the sleep() function, which pauses (delays) the execution of your program for a set amount of time. This is handy for animations, retry loops, timed messages, or simply slowing a program down so you can watch what it does. Because the function differs between operating systems, this tutorial gives you one …

C Program to perform complex numbers operations using structure.

Complex number operations in C using structures demonstrate how to pair two related values — a real part and an imaginary part — into a single user-defined type. Complex numbers are written as a + bi, where a is the real component and b is the imaginary component (i = √−1). They appear in signal …