Java Program to Print Inverted Right-Angled Triangle with Decreasing Number Pattern

Print Inverted Right-Angled Triangle with Decreasing Number Pattern

In the previous article, we have discussed Java Program to Print Inverted Right-Angled Triangle with Increasing Number Pattern.
In this article we will see how to print inverted right-angled triangle with decreasing number pattern.

Example-1

When size value=5

5 4 3 2 1
4 3 2 1
3 2 1
2 1
1
Example-2:

When size value=4

4 3 2 1
3 2 1
2 1
1

Now, let’s see the actual program to print it.

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Approach:

  • Enter total size and number store them in integer variables size.
  • Take one outer for loop to iterate the rows.
  • Take inner for loop to iterate column and print values for each row.

Java Code to Print Inverted Right-Angled Triangle with Decreasing Number Pattern

import java.util.Scanner;
class Main
{
    public static void main(String[] args)
    {
        // taking size of no. of iteration 
        //Row and column are the iterators
        int size , numberOfRows , numberOfColumns;
        // Create a new Scanner object
        Scanner scanner = new Scanner(System.in);
        // Get the number of rows from the user
        System.out.print("Enter the number of rows : ");
       size = scanner.nextInt();
        //Outer loop to iterate the rows
        //Iterates from  size to 1  
        for ( numberOfRows = size ; numberOfRows >=1; numberOfRows--) 
        {
            //Inner loop to iterate the columns
         //Iterates from  row value to 1   
            for (  numberOfColumns = numberOfRows ; numberOfColumns >= 1; numberOfColumns--)
                System.out.print(numberOfColumns + " ");
            // printing in new line  
            System.out.println();
        }
    }
}
Output :

Enter the number of rows : 5

5 4 3 2 1
4 3 2 1
3 2 1
2 1
1

C Code to Print Inverted Right-Angled Triangle with Decreasing Number Pattern

#include <stdio.h>
#include <stdlib.h>
int main()
{
       int size , numberOfRows , numberOfColumns;
       printf("Enter the number of rows : ");
       scanf ("%d",&size);
        for ( numberOfRows = size ; numberOfRows >=1; numberOfRows--) 
        { 
            for (  numberOfColumns = numberOfRows ; numberOfColumns >= 1; numberOfColumns--)
                printf("%d ",numberOfColumns );
             printf("\n");
        }
    return 0;
}
Output :

Enter the number of rows : 5

5 4 3 2 1
4 3 2 1
3 2 1
2 1
1

C++ Code to Print Inverted Right-Angled Triangle with Decreasing Number Pattern

#include <bits/stdc++.h>
using namespace std;
int main()
{
    
       int size , numberOfRows , numberOfColumns;
       printf("Enter the number of rows : ");
       scanf ("%d",&size);
        for ( numberOfRows = size ; numberOfRows >=1; numberOfRows--) 
        { 
            for (  numberOfColumns = numberOfRows ; numberOfColumns >= 1; numberOfColumns--)
                cout << numberOfColumns ;
           
             cout << "\n";
        }
    return 0;
}
Output :

Enter the number of rows : 5

5 4 3 2 1
4 3 2 1
3 2 1
2 1
1

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