Program to print numbers columns wise
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)