Program to print numbers columns wise

18 Apr, 2018
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 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 iValue 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.
We will take 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 iValue of i    ||     Number of Element
    1         ||          1
    2         ||          2
    3         ||          3     so on

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++
Java
Python3
C#
PHP
// 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 Codeint main(){    // get value from user    int n = 5;          // function calling    pattern(n);          return 0;}  // This code is contributed by Vishal
// Java Program to natural numbers columns wiseimport 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();    }}
# 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 codedisplay()  # This code is contributed by rishabh_jain
//C# Program to natural numbers columns wiseusing 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 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 ?> 
Output :
1
2 6 
3 7 10
4 8 11 13
5 9 12 14 15

Mithun Kumar
pattern-printing
School Programming
pattern-printing
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