https://www.hackerrank.com/challenges/staircase

staircase.java

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int cases = scan.nextInt();
        for(int i = 0; i < cases; i++) {
            String line = "";
            for(int j = 0; j< cases; j++) {
                if(cases-1-i > j){
                    line += " ";
                }
                else {
                    line += "#";
                }
            }
            System.out.println(line);
        }
    }
}
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