Program to print numbers columns wise

Last Updated : 17 Feb, 2023

We have to print natural numbers columns wise with decreasing size, depending upon given number of lines as described in the examples below.

Examples :

Input : 5  Output :  1  2 6   3 7 10  4 8 11 13  5 9 12 14 15    Input : 3  Output :  1  2 4  3 5 6

Approach :

We will take the outer for loop, which is for how many lines we want to print.
Since we want to print natural number column by column, for this we will take an inner for loop. In the above example the number of element is depending upon number for i, therefore we take a variable k which is equal to i

Value of i    ||     Number of Element      1         ||          1      2         ||          2      3         ||          3     so on

Using the logic k = k + n – j, we will get natural numbers according to requirement.

C++

   // CPP Program to natural numbers columns wise 
#include <bits/stdc++.h> 
using namespace std; 
  
void pattern(int n) 
{  
    // Outer loop for how many  
    // lines we want to print 
    for (int i = 1; i <= n; i++) { 
        int k = i; 
  
        // Inner loop for printing 
        // natural number 
        for (int j = 1; j <= i; j++) { 
            cout << k << " "; 
  
            // Logic to print natural 
            // value column-wise 
            k = k + n - j; 
        } 
        cout << " \n"; 
    } 
} 
  
// Driver Code 
int main() 
{ 
    // get value from user 
    int n = 5; 
      
    // function calling 
    pattern(n); 
      
    return 0; 
} 
  
// This code is contributed by Vishal 
 
  

Java

   // Java Program to natural numbers columns wise 
import java.util.Scanner; 
class Pattern  
{ 
    void display() 
    { 
        int n = 5; 
          
        // Outer loop for how many lines we want to print 
        for (int i = 1; i <= n; i++)  
        { 
            int k = i; 
  
            // Inner loop for printing natural number 
            for (int j = 1; j <= i; j++)  
            { 
                System.out.print(k); 
                  
                // Logic to print natural value column-wise 
                k = k + n - j; 
            } 
            System.out.println(); 
        } 
    } 
  
    // Driver Code 
    public static void main(String[] args) 
    { 
        Pattern p = new Pattern(); 
        p.display(); 
    } 
} 
 
  

Python3

   # Python Program to natural numbers columns wise 
  
def display(): 
        n = 5
        i = 1
  
        # Outer loop for how many lines we want to print 
        while(i<=n):  
            k = i 
            j = 1
  
            # Inner loop for printing natural number 
            while(j <= i):  
                print (k,end=" ") 
                  
                # Logic to print natural value column-wise 
                k = k + n - j 
                j = j + 1
                  
            print("\r") 
            i = i + 1
  
#Driver code 
display() 
  
# This code is contributed by rishabh_jain 
 
  

C#

   //C# Program to natural numbers columns wise  
using System;  
class Pattern   
{  
    void display()  
    {  
        int n = 5;  
            
        // Outer loop for how many lines we want to print  
        for (int i = 1; i <= n; i++)   
        {  
            int k = i;  
    
            // Inner loop for printing natural number  
            for (int j = 1; j <= i; j++)   
            {  
                Console.Write(k +" ");  
                    
                // Logic to print natural value column-wise  
                k = k + n - j;  
            }  
            Console.WriteLine();  
        }  
    }  
    
    // Driver Code  
    public static void Main()  
    {  
        Pattern p = new Pattern();  
        p.display();  
    }  
}  
  
// This code is contributed by vt_m.
 
  

PHP

   <?php 
// PHP implementation to print 
// natural numbers columns wise 
  
function pattern($n) 
{  
    // Outer loop for how many  
    // lines we want to print 
    for ($i = 1; $i <= $n; $i++)  
    { 
        $k = $i; 
  
        // Inner loop for printing 
        // natural number 
        for ($j = 1; $j <= $i; $j++)  
        { 
            echo $k." "; 
  
            // Logic to print natural 
            // value column-wise 
            $k = $k + $n - $j; 
        } 
        echo " \n"; 
    } 
} 
  
// Driver Code 
$n = 5; 
pattern($n); 
  
// This code is contributed by mits  
?>  
 
  

Javascript

   <script> 
    // Javascript Program to natural numbers columns wise 
      
    function pattern(n) 
    { 
        // Outer loop for how many 
        // lines we want to print 
        for (let i = 1; i <= n; i++) { 
            let k = i; 
      
            // Inner loop for printing 
            // natural number 
            for (let j = 1; j <= i; j++) { 
                document.write(k+" "); 
      
                // Logic to print natural 
                // value column-wise 
                k = k + n - j; 
            } 
            document.write("<br>"); 
        } 
          
    } 
      
    // Driver Code 
      
        // get value from user 
        let n = 5; 
          
        // function calling 
        pattern(n); 
          
      
    // This code is contributed by Pushpesh Raj. 
      
</script>
 
  

Output

1    2 6    3 7 10    4 8 11 13    5 9 12 14 15

Time Complexity: O(n²)
Auxiliary Space: O(1)

Program to Print First N Natural Numbers

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Article Tags :

Practice Tags :

pattern-printing

Program to print numbers columns wise

C++

Java

Python3

C#

PHP

Javascript

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