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");
	}
}

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