Staircase in Algorithm | HackerRank Programming Solutions | HackerRank Problem Solving Solutions in Java [💯Correct]

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Introduction To Algorithm

The word Algorithm means “a process or set of rules to be followed in calculations or other problem-solving operations”. Therefore Algorithm refers to a set of rules/instructions that step-by-step define how a work is to be executed upon in order to get the expected results. 

Advantages of Algorithms:

  • It is easy to understand.
  • Algorithm is a step-wise representation of a solution to a given problem.
  • In Algorithm the problem is broken down into smaller pieces or steps hence, it is easier for the programmer to convert it into an actual program.

Link for the ProblemStaircase – Hacker Rank Solution

Staircase – Hacker Rank Solution

Problem:

Staircase detail

This is a staircase of size :

   #
  ##
 ###
####

Its base and height are both equal to . It is drawn using # symbols and spaces. The last line is not preceded by any spaces.

Write a program that prints a staircase of size .

Function Description

Complete the staircase function in the editor below.

staircase has the following parameter(s):

  • int n: an integer

Print

Print a staircase as described above.

Input Format

A single integer, , denoting the size of the staircase.

Constraints

 .

Output Format

Print a staircase of size  using # symbols and spaces.

Note: The last line must have  spaces in it.

Sample Input

6 

Sample Output

     #
    ##
   ###
  ####
 #####
######

Explanation

The staircase is right-aligned, composed of # symbols and spaces, and has a height and width of n=6.

Staircase – Hacker Rank Solution
import java.util.Scanner;

/**
 * @author Techno-RJ
 *
 */
public class Staircase {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		String str = "#";
		for (int i = 0; i < n; i++) {
			System.out.printf("%" + (n) + "s \n", str);
			str += "#";
		}
		in.close();
	}
}

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