# 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 ``````