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C Programming Code Examples

C > For Loops and While Loops Code Examples

Program to swap first and last digit of a number

C Program Code Concatenate Two Strings - C programming code concatenate 2 strings in single string. Concatenation of 'two strings' is the process of Joining them together to form a new string. Concatenation appends second

C++ Code to List Files in Current Directory - To list and "display/print" all the files present inside the current directory in The C++, use a pointer say dir of DIR and the pointer say pdir of dirent to open and "read directory" to print

Find the Frequency of Substring in Strings - Take a string and a substring as input. Store it in the arrays 'str[] & str1[]' respectively. Using For Loop to 'compare' str1[] with the str[]. Do step2 until the end of main string. During the

C Code Check if an Integer is Odd or Even - C Language Program takes the given integer & checks whether the integer is odd or even. Take the integer to be checked as input. Find the remainder of the integer by dividing it by

Check Whether a Number is Prime or Not - A prime number is a positive integer which is divisible only by 1 and itself. Example: 2, 3, 5, 7, 11, 13... If the for loop terminates when the test expression of loop i <= n/2 is false, it is a

C Armstrong numbers between an interval - Declare function to print Armstrong numbers in given range. Lets give a meaningful name to function. Say "printArmstrong()" function prints all Armstrong numbers in given range.

C++ Language Open and Read File Source - C++ program opens a file named filename.txt to read the content present inside this file, if there is an error in opening a file then puts a message on the screen for the "error", and if

C Code Function Solve the Tower of Hanoi - C Program code uses Recursive Function and solves the tower of hanoi. Tower of hanoi is a mathematical puzzle. It consists of threerods, and a number of disks of different sizes which