2020
Hackerrank Box It! Solution
Design a class named Box whose dimensions are integers and private to the class. The dimensions are labelled: length , breadth , and height . The default constructor of the class should initialize , , and to . The…
2020
Hackerrank Classes and Objects Solution
A class defines a blueprint for an object. We use the same syntax to declare objects of a class as we use to declare variables of other basic types. For example: Kristen is a contender for valedictorian of her high…
2020
Hackerrank Class Solution
Classes in C++ are user defined types declared with keyword class that has data and functions . Although classes and structures have the same type of functionality, there are some basic differences. The data members of…
2020
Hackerrank Structs Solution
struct is a way to combine multiple fields to represent a composite data structure, which further lays the foundation for Object Oriented Programming. For example, we can store details related to a student in a struct…
2020
Hackerrank Strings Solution
C++ provides a nice alternative data type to manipulate strings, and the data type is conveniently called string. Some of its widely used features are the following: Declaration: Size: Concatenate two strings: Accessing…
2020
Hackerrank StringStream Solution
stringstream is a stream class to operate on strings. It basically implements input/output operations on memory (string) based streams. stringstream can be helpful in different type of parsing. The following…
2020
Hackerrank Variable Sized Arrays Solution
Consider an -element array, , where each index in the array contains a reference to an array of integers (where the value of varies from array to array). See the Explanation section below for a diagram. Given , you must…
2020
Hackerrank Arrays Introduction Solution
An array is a series of elements of the same type placed in contiguous memory locations that can be individually referenced by adding an index to a unique identifier. Declaration: Accessing elements of an array: You'll…
2020
Hackerrank Pointer Solution
A pointer in C is a way to share a memory address among different contexts (primarily functions). They are primarily used whenever a function needs to modify the content of a variable, of which it doesn't have…
2020
Hackerrank Functions Solution
Functions are a bunch of statements glued together. A function is provided with zero or more arguments, and it executes the statements on it. Based on the return type, it either returns nothing (void) or something. A…
2020
Hackerrank For Loop Solution
A for loop is a programming language statement which allows code to be repeatedly executed. The syntax for this is expression_1 is used for intializing variables which are generally used for controlling terminating flag…
2020
Hackerrank Conditional Statements Solution
if and else are two of the most frequently used conditionals in C/C++, and they enable you to execute zero or one conditional statement among many such dependent conditional statements. We use them in the following…
2020
Hackerrank Basic Data Types Solution
Some C++ data types, their format specifiers, and their most common bit widths are as follows: Int ("%d"): 32 Bit integer Long ("%ld"): 64 bit integer Char ("%c"): Character type Float ("%f"): 32 bit real value Double…
2020
Hackerrank Input and Output Solution
Objective In this challenge, we're practicing reading input from stdin and printing output to stdout. In C++, you can read a single whitespace-separated token of input using cin, and print output to stdout using cout…