Inverted V-shape Number Pattern

Solution

Program in C

#include <stdio.h>
int main()
{
  int output, input;
  printf("Enter the size of the row:");
  int rowSize;
  scanf("%d", &rowSize);
  int x = rowSize;
  int y = rowSize;
  for (output = 1; output <= rowSize; output++)
  {
    for (input = 1; input <= rowSize * 2; input++)
    {
      if (input == x || input == y)
      {
        printf("%d", output);
      }
      else
      {
        printf(" ");
      }
    }
    x--;
    y++;
    printf("\n");
  }
}

You can also try this code with Online C Compiler

Run Code

Input/Output:

Enter the size of the row:2
 1
2 2

Program in C++

#include <iostream>
using namespace std;
int main()
{
    int output, input, c;
    cout << "Enter size of the row:";
    int rowSize;
    cin >> rowSize;


    int x = rowSize;
    int y = rowSize;
    for (output = 1; output <= rowSize; output++)
    {
        for (input = 1; input <= rowSize * 2; input++)
        {
            if (input == x || input == y)
            {
                cout << output;
            }
            else
            {
                cout << " ";
            }
        }
        x--;
        y++;
        cout << "\n";
    }
}

You can also try this code with Online C++ Compiler

Run Code

Input/Output

Enter size of the row:3
  1
 2 2
3   3

Program in Java

import java.util.Scanner;
public class InvertedVNumPattern {
    public static void main(String[] args) {
        Scanner cs = new Scanner(System.in);
        System.out.println("Enter the size of the row:");
        int output, input;
        int rowSize = cs.nextInt();
        int x = rowSize;
        int y = rowSize;
        for (output = 1; output <= rowSize; output++) {
            for (input = 1; input <= rowSize * 2; input++) {
                if (input == x || input == y) {
                    System.out.print(output);
                } else {
                    System.out.printf(" ");
                }
            }
            x--;
            y++;
            System.out.println();
        }
        cs.close();
    }
}

You can also try this code with Online Java Compiler

Run Code

Input/Output

Enter the size of the row:
4
   1
  2 2
 3   3
4     4

Program in Python

rowSize = int(input("Enter the size of the row:"))
x = rowSize
y = rowSize
for output in range(1, rowSize+1):
    for inn in range(1, rowSize*2):
        if inn == x or inn == y:
            print(output, end="")
        else:
            print(" ", end="")
    x -= 1
    y += 1
    print("\r")

You can also try this code with Online Python Compiler

Run Code

Input/Output

Enter the size of the row:5
    1
   2 2
  3   3
 4     4
5       5

Frequently Asked Questions

What is a pattern program?

Pattern programs are nothing more than patterns of numbers, alphabets, or symbols in a particular order. These kinds of pattern programs are simply solved utilizing the for loop condition.

Are patterns asked in interviews?

During coding interviews, applicants are frequently tested using a pattern program.

Conclusion

In this article, we have learned to design an Inverted V-shape Number pattern in different programming languages.

We hope that this blog has helped you enhance your knowledge of pattern problems in various programming languages. 
To practice more such interview problems and upskill yourself, check out our 

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