• Quick Ref

• Digit Frequency
• Adding the diagonal elements of the Matrix
• Matrix Identical or not
• Prime or Not
• Perfect number or Not
• Leap year or Not
• Magic number or not
• Armstrong or not
• Palindrome or Not
• Revserse a number
• Fibonacci till given number
• Pointer to pointer
• Print Array with Pointers
• Pointers Printing 2D array
• Pointers Printing 3D array
• Number of elements divisible by the divisor in an array
• Addition of row and column elements in 2D array
• Array Sorting in Descending order
• Array Sorting in Ascending order
• Function return pointer
• Array as function argument
• 2D Array as function argument
• 3D Array as function argument
• Function Return more than one value
• Array of Pointer
• Void Pointers
• Greatest of three numbers

Dynamic Memory Allocation

• Dynamic Memory Allocation using malloc
• Dynamic Memory Allocation using calloc
• Dynamic Memory Allocation using realloc
• Dynamic Memory Allocation in Array using malloc
• Dynamic Memory Allocation in Array using calloc
• Dynamic Memory Allocation in Array using realloc
• Freeing memory using free function
• Dynamic Memory Allocation in 2D Array Using Pointers and malloc with constant column
• Dynamic Memory Allocation in 2D Array Using Pointers and malloc with constant row
• Dynamic Memory Allocation in 2D Array Using Pointers and malloc with variable rows and columns
• String of Size infinite without space

HackerRank

• Small triangle Large Triangle
• Clock angle problem accuracy level-HIGH
• Clock angle problem accuracy level-LOW
• Bitwise problem

Source code

• Source code of strlen function
• Source code of strcmp function
• Source code of strcpy function
• Source code of strcat function
• Source code of strcat function 2
• Source code of strncpy function
• Source code of strncmp function
• Source code of strncat function
• Source code of strcspn function
• Source code of strspn function
• Souce code of strstr function
• Source code of strtok function
• Source code of sizeof function

String

• Count Words in String
• Reverse every two character in a string
• Reverse all words in a string
• Lower case to upper case in string
• Upper case to lower case in string
• Reverse string using Pointer
• Reverse String Using Array
• Array of pointer with address explanation
• Pointer to an array with address explanation
• Para printing without special char,counting no. of lines and no. of special char
• String Manipulate Problem

Structure

• Structure diclaration
• Array of structure
• Array within Structure
• Array within Structure with character
• Changing Structure elements
• Structure in structure
• Pointer to a structure

Recursion

• Factorial using recursion
• String reverse using recursion
• Square of a number without multiplication

TypeDef

• Type Def small example

Header file

• Pragma header
• Main code for Header file 1
• Dot H file for Header file 1

Bitwise Operation

• Status of Variable position
• Number of zeros and ones in a number
• Operation on Bits
• Set a bit