C program to print a pattern of numbers

In this article we will learn to implement a C program to print a pattern of numbers. A C program is given below for printing a numbers pattern.

Given starting number of a pattern and value of n, print the pattern as given below

If starting value = 3 and n = 4 then the pattern should be:

3
4 4
5 5 5
6 6 6 6
6 6 6 6
5 5 5
4 4
3

C program for above problem is as given below:

#include <stdio.h>
#include <conio.h>

int main() 
{
	int val;
	int n;
	printf("Enter a value: ");
	scanf("%d", &val);
	printf("Enter n: ");
	scanf("%d", &n);
	for(int i = 1; i <= n; i++)
	{
		for(int j = 1; j <= i; j++)
		{
			printf("%d ", val);
		}
		val++;
		printf("\n");
	}
	val--;
	for(int i = 1; i <= n; i++)
	{
		for(int j = n; j >= i; j--)
		{
			printf("%d ", val);
		}
		val--;
		printf("\n");
	}
	getch();
    return 0;
}

Input and Output for the above program is as follows:

Enter a value: 3
Enter n: 4
3
4 4
5 5 5
6 6 6 6
6 6 6 6
5 5 5
4 4
3

Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.