HackerRank30DaysOfCode-Day 0: Hello, World.
Objective
In this challenge, we review some basic concepts that will get you started with
this series. You will need to use the same (or similar) syntax to read input
and write output in challenges throughout Hacker Rank. Check out the Tutorial tab for learning materials and an instructional video!
Task
To complete this challenge, you must save a line of input from stdin to a
variable, print Hello, World. on a single line,
and finally print the value of your variable on a second line.
You've got this!
Note: The instructions are
Java-based, but we support submissions in many popular languages. You can
switch languages using the drop-down menu above your editor, and
the variable may be written differently depending on the
best-practice conventions of your submission language.
Input FormatA single line of text denoting (the variable whose contents must be printed).Output FormatPrint Hello, World. on the first line, and the contents of on the second line.Sample InputWelcome to 30 Days of Code!Sample OutputHello, World. Welcome to 30 Days of Code!
Explanation
On the first line, we print the string literal Hello, World.. On the second line, we print the contents of
the variable which, for this sample case, happens to be Welcome to 30 Days of Code!. If you do not print the variable's contents to stdout, you will
not pass the hidden test case.
using System;using System.Collections.Generic;using System.IO;class Solution { static void Main(String[] args) { // Declare a variable named 'inputString' to hold our input. String inputString; // Read a full line of input from stdin (cin) and save it to our variable, input_string. inputString = Console.ReadLine(); // Print a string literal saying "Hello, World." to stdout using cout. Console.WriteLine("Hello, World."); // TODO: Write a line of code here that prints the contents of input_string to stdout. Console.WriteLine(inputString); }}
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