C Program which produces its own source code as its output.

Write a c program which produces its own source code as its output.This C program uses the C File i/o operations like fopen(), fclose(). In this program, We pritn the source code of the program.Read more about C Programming Language . /************************************************************ You can use all the programs on www.c-program-example.com* for personal and learning purposes. …

Set Union and Intersection in C — Array Program with Examples

A set is a collection of distinct elements — no duplicates, order irrelevant. The two operations every course asks you to implement in C are union (A ∪ B: every element that appears in A or B) and intersection (A ∩ B: only the elements that appear in both). This page implements them cleanly over arrays, with a shared …

K&R C Programs Exercise 4-8

Exercise 4-8. Suppose that there will never be more than one character of pushback. Modify getch and ungetch accordingly. The original K&R implementation uses an array buf[BUFSIZE] and an index bufp to support multiple pushed-back characters. If only one character of pushback is ever needed, the array becomes unnecessary. A single static int buf suffices …

K&R C Exercise 3-6: itoa with Minimum Field Width

Exercise 3-6. Write a version of itoa that accepts three arguments instead of two. The third argument is a minimum field width; the converted number must be padded with blanks on the left if necessary to make it wide enough. This is exactly what printf‘s %6d format does — the 6 is a minimum field …

Reverse a Linked List in C – Iterative and Recursive Approaches

To reverse a linked list in C, walk through the list with three pointers — prev, curr, and nxt — flipping each node’s next pointer to point backwards as you go. When curr reaches NULL you have finished, and prev is the new head. This iterative approach runs in O(n) time and O(1) space and …

K&R C Exercise 1-23: Remove Comments from a C Program

Exercise 1-23. Write a program to remove all comments from a C program. Don’t forget to handle quoted strings and character constants properly. C comments don’t nest. Approach The core challenge is that the same character sequence means completely different things depending on context. A /* inside a string literal is not a comment. A …