Print Reverse Floyd’s Triangle Number Pattern
In the previous article, we have discussed Java Program to Print Floyd’s Triangle Number Pattern
In this article we are going to see how to print reverse Floyd’s triangle number pattern.
- Java Code to Print Reverse Floyd’s Triangle Number Pattern
- C Code to Print Reverse Floyd’s Triangle Number Pattern
- C++ Code to Print Reverse Floyd’s Triangle Number Pattern
- NAUKRI Pivot Point Calculator
Example-1 When rows value = 5 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Example-2: When rows value=7 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Now, let’s see the actual program to print it.
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Approach:
- Enter total number of rows and store it in an integer variable
rows - Take one outer for loop to iterate the rows.
- Take one inner for loop to iterate the columns.
- After each iteration print a new line.
Java Code to Print Reverse Floyd’s Triangle Number Pattern
import java.util.Scanner;
class pattern
{
//Function to set the counter
static int calculateCounter(int rows)
{
int sum = 0;
for (int i = 1; i <= rows; i++)
{
sum += i;
}
return sum;
}
//Main Function
public static void main(String[] args)
{
//Create a new Scanner object
Scanner scan = new Scanner(System.in);
//Taking total number of rows as input from user
System.out.print("Rows : ");
int rows= scan.nextInt();
//Row and column are the iterators and counter to print
int numberOfRows, numberOfColumns, counter = calculateCounter(rows);
//Outer loop to iterate the rows
//Iterates from 1 to the number of rows entered by the user(backwards)
for (numberOfRows = rows; numberOfRows >= 1; --numberOfRows)
{
//Inner loop to print number
//Iterator iterates from 1 to the numberOfRows
for (numberOfColumns = 1; numberOfColumns <= numberOfRows; ++numberOfColumns)
{
System.out.print(counter-- + " ");
}
//Prints a newline
System.out.println();
}
}
}
Output: Rows : 5 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
C Code to Print Reverse Floyd’s Triangle Number Pattern
#include <stdio.h>
//Function to set the counter
int calculateCounter(int rows)
{
int sum = 0;
for (int i = 1; i <= rows; i++)
{
sum += i;
}
return sum;
}
//Main Function
int main()
{
//Taking total number of rows as input from user
printf("Rows : ");
int rows;
scanf("%d", &rows);
//Row and column are the iterators and counter to print
int numberOfRows, numberOfColumns, counter = calculateCounter(rows);
//Outer loop to iterate the rows
//Iterates from 1 to the number of rows entered by the user(backwards)
for (numberOfRows = rows; numberOfRows >= 1; --numberOfRows)
{
//Inner loop to print number
//Iterator iterates from 1 to the numberOfRows
for (numberOfColumns = 1; numberOfColumns <= numberOfRows; ++numberOfColumns)
{
printf("%d ", counter--);
}
//Prints a newline
printf("\n");
}
return 0;
}
Output: Rows : 5 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
C++ Code to Print Reverse Floyd’s Triangle Number Pattern
#include <iostream>
using namespace std;
//Function to set the counter
int calculateCounter(int rows)
{
int sum = 0;
for (int i = 1; i <= rows; i++)
{
sum += i;
}
return sum;
}
//Main Function
int main(int argc, char const *argv[])
{
//Taking total number of rows as input from user
cout << "Rows : ";
int rows;
cin >> rows;
//Row and column are the iterators and counter to print
int numberOfRows, numberOfColumns, counter = calculateCounter(rows);
//Outer loop to iterate the rows
//Iterates from 1 to the number of rows entered by the user(backwards)
for (numberOfRows = rows; numberOfRows >= 1; --numberOfRows)
{
//Inner loop to print number
//Iterator iterates from 1 to the numberOfRows
for (numberOfColumns = 1; numberOfColumns <= numberOfRows; ++numberOfColumns)
{
cout << counter-- << " ";
}
//Prints a newline
cout << endl;
}
return 0;
}
Output: Rows : 5 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
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