# C Programming Code Examples

## C > Mathematics Code Examples

### C Program to find prime numbers in a given range

C Code to Illustrate the Concept of Unions -
C Define the union named number with two variables j1 and j2. Define the union variable x. Take the value of two variables using dot operator(i.e. x.j1, x.j2) as input. Print values

Convert Binary Number Octal Vice-Versa -
You will learn to convert "binary number" to octal, and octal number to binary manually by creating a "user-defined" function. In this, first convert the binary number to "decimal".

C program code to set nth bit of a number -
We use bitwise OR | operator to set any bit of a number. C Bitwise OR operator evaluate each bit of the resultant value to 1 if any of the operand corresponding bit is 1. Input the

C++ Check Whether an Input Binary Tree -
This is a C++ Program to check whether tree is Subtree of another tree. Given two binary trees, check if the first tree is subtree of the second one. A subtree of a tree T is a tree S

C program code Self-Referential structure -
Buffer for ungetch, next free position in buf, word frequency count, getword: get next word or character from input, addtree: add a node with w, at or below p, a new word has

C++ Language & Concatenate Two Strings -
Combined two strings means add both string with each other, perform this operation using 'library function' or without library function. If first string is 'john' and second string is porter

C++ Implementing B-Tree Data Structure -
This C++ Program implements The "B-Tree" data structure. B-tree is a tree data structure that keeps "data sorted" and allows searches, sequential access & insertions in logarithmic

Read Two Integers and Swap their Values -
C language program coding to take the two integers as input and store it in the variables m & n respectively. Call function swap. Pass addresses of variables to the function swap.