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C Programming Code Examples

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Program to Display its own Source Code as Output



Program to Display its own Source Code as Output

The output of this program is the location of this C programming file.

#include <stdio.h>
int main() {
    FILE *fp;
    char c;
    fp = fopen(__FILE__,"r");
    do {
         c = getc(fp);
         putchar(c);
    }
    while(c != EOF);
    fclose(fp);
    return 0;
}

C++ Checks if an Undirected Graph is Tree
C++ Program to check whether an undirected 'graph is tree' or not. Graph is tree if it doesn't contain cycles. A recursive function that uses visited[] & parent to detect cycle in subgraph

Count Numbers of Words Digits & Vowels
Program find number of words, blank spaces, Special symbols, Digits, "Vowels" by pointers. We are going to accept string use 'gets()'. We are not using scanf() to accept string because

C++ Code Calculate Power of any Number
For calculating the power of any number user have four possibilities to input values. Sample code only work for when we input +ve power, +ve 'base value', -ve base value. It is not work

Find the Length of the Linked List without
C Language program Find the Length of the linked list without using recursion. Program, using iteration, counts the number of nodes in a Linked List. A linked list is an ordered set

Sum the Integers from 1 to users number
Sum the integers from 1 to a user-specified number in C programming language. Declare the number of integers to be summed. The loop counter. Sum integers from 1 to count.

Implement Find all Cross Edges in a Graph
This C++ program, "using recursion", displays the number of cross edges in a graph. A cross edge is one in which a node points to another node which has already been fully visited. Int

C++ Programs to Implements D-ary-Heap
Filling up 'heap' with the array. A Function to check if heap is empty. Function to get index parent of i. Function to get index of k th child of i. Function to find least element. Function

C++ Codes Check a Number is Palindrome
C++ sample ask to enter a number to reverse it, then check whether reverse is equal to its "original or not", if "it is equal" then it will be palindrome else it will be not be palindrome: