C Program to Print Square With Diagonal Numbers Pattern

Write a C Program to print square with diagonal numbers pattern. Or C program to print the square with all zeros except the pattern of the diagonal numbers using for loop.

#include <stdio.h>

int main()
{
	int rows;

	printf("Enter Square with Diagonal Numbers Side = ");
	scanf("%d", &rows);

	printf("Square with Numbers in Diaginal and Remaining 0's\n");

	for (int i = 1; i <= rows; i++)
	{
		for (int j = 1; j < i; j++)
		{
			printf("0 ");
		}
		printf("%d ", i);

		for (int k = i; k < rows; k++)
		{
			printf("0 ");
		}
		printf("\n");
	}
}
C Program to Print Square With Diagonal Numbers Pattern

It is another way of printing the square pattern with diagonal numbers and all the remaining zeros in C.

#include <stdio.h>

int main()
{
	int rows;

	printf("Enter Square with Diagonal Numbers Side = ");
	scanf("%d", &rows);

	printf("Square with Numbers in Diaginal and Remaining 0's\n");

	for (int i = 1; i <= rows; i++)
	{
		for (int j = 1; j <= rows; j++)
		{
			if (i == j)
			{
				printf("%d ", i);
			}
			else
			{
				printf("0 ");
			}
		}
		printf("\n");
	}
}
Enter Square with Diagonal Numbers Side = 9
Square with Numbers in Diaginal and Remaining 0's
1 0 0 0 0 0 0 0 0 
0 2 0 0 0 0 0 0 0 
0 0 3 0 0 0 0 0 0 
0 0 0 4 0 0 0 0 0 
0 0 0 0 5 0 0 0 0 
0 0 0 0 0 6 0 0 0 
0 0 0 0 0 0 7 0 0 
0 0 0 0 0 0 0 8 0 
0 0 0 0 0 0 0 0 9 

This C program displays the square pattern of incremental diagonal numbers. All the remaining ones are zeros using a while loop.

#include <stdio.h>

int main()
{
	int i, j, rows;

	printf("Enter Square with Diagonal Numbers Side = ");
	scanf("%d", &rows);

	printf("Square with Numbers in Diaginal and Remaining 0's\n");
	i = 1;

	while (i <= rows)
	{
		j = 1;

		while (j <= rows)
		{
			if (i == j)
			{
				printf("%d ", i);
			}
			else
			{
				printf("0 ");
			}
			j++;
		}
		printf("\n");
		i++;
	}
}
Enter Square with Diagonal Numbers Side = 15
Square with Numbers in Diaginal and Remaining 0's
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 9 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 11 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 12 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 13 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 14 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 

This C example uses the do while loop to print the square numbers pattern where its diagonal are continuous numbers and the remaining all are zeros.

#include <stdio.h>

int main()
{
	int i, j, rows;

	printf("Enter Square with Diagonal Numbers Side = ");
	scanf("%d", &rows);

	printf("Square with Numbers in Diaginal and Remaining 0's\n");
	i = 1;

	do
	{
		j = 1;

		do
		{
			if (i == j)
			{
				printf("%d ", i);
			}
			else
			{
				printf("0 ");
			}

		} while (++j <= rows);

		printf("\n");

	} while (++i <= rows);
}
Enter Square with Diagonal Numbers Side = 12
Square with Numbers in Diaginal and Remaining 0's
1 0 0 0 0 0 0 0 0 0 0 0 
0 2 0 0 0 0 0 0 0 0 0 0 
0 0 3 0 0 0 0 0 0 0 0 0 
0 0 0 4 0 0 0 0 0 0 0 0 
0 0 0 0 5 0 0 0 0 0 0 0 
0 0 0 0 0 6 0 0 0 0 0 0 
0 0 0 0 0 0 7 0 0 0 0 0 
0 0 0 0 0 0 0 8 0 0 0 0 
0 0 0 0 0 0 0 0 9 0 0 0 
0 0 0 0 0 0 0 0 0 10 0 0 
0 0 0 0 0 0 0 0 0 0 11 0 
0 0 0 0 0 0 0 0 0 0 0 12 

About Suresh

Suresh is the founder of TutorialGateway and a freelance software developer. He specialized in Designing and Developing Windows and Web applications. The experience he gained in Programming and BI integration, and reporting tools translates into this blog. You can find him on Facebook or Twitter.