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Usernames changes certification test problem | Hackerrank Solution Problem:- A company has released a new internal system, and each employee has been assigned a username. Employees are allowed to change … Read More

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What is file inclusion in C / preprocessor directives / Micros in c

what is Enumerated data types in C

What is Conditional Operator in C

What is type conversion in C

Matrix sum | Infytq solution

Self referential structure (Notation of linklist ) / Singly link list in C

Dynamic memory allocation in c

File Handling in C

Call by value and Call by reference

How to access the value of some variable using pointer

Pointer in C

Union in C

what is Array of structure in C

Structure and Union in c

Predefine function of C in string.h library

string in c.

Reading and writing of string using character array.

Practice questions on 2D array

2D Array ( two dimensional array) in c

string Representation of objects certification test hackerrank solution

Program to delete duplicates from a linked list

Program to find nth fibonacci number by dynamic programming

Program to find the sum of the subsets of an array

Program to generate all the subsets of an array

Recursive program to reverse a number

Program to find the minimum element in an array by recursion

Program to find the largest element in an array by recursion

Checking for Prime number using recursion

Recursive Program to calculate power of a number

Program to check Friendly pair

Tag: username changes hackerrank solution python

Usernames changes certification test problem | Hackerrank Solution