# C Exercises: Display the pattern like a pyramid with a number which will repeat the number in the same row

## C For Loop: Exercise-17 with Solution

Write a C program to make such a pattern like a pyramid with a number which will repeat the number in the same row.

The pattern is as follows:

1 2 2 3 3 3 4 4 4 4

This C program generates a pyramid pattern where each row contains repeated numbers corresponding to the row number. For example, the first row displays '1', the second row displays '2 2', and so on, up to the specified number of rows. The program uses nested loops to create the pyramid structure, with careful formatting to align the numbers correctly.

**Visual Presentation:**

**Sample Solution:**

**C Code:**

```
#include <stdio.h> // Include the standard input/output header file.
void main()
{
int i, j, spc, rows, k; // Declare variables 'i', 'j' for loop counters, 'spc' for spaces, 'rows' for user input, 'k' for loop counter.
printf("Input number of rows : "); // Prompt the user to input the number of rows.
scanf("%d", &rows); // Read the value of 'rows' from the user.
spc = rows + 4 - 1; // Calculate the initial number of spaces.
for(i = 1; i <= rows; i++) // Loop through each row.
{
for(k = spc; k >= 1; k--) // Loop to print spaces.
{
printf(" ");
}
for(j = 1; j <= i; j++) // Loop to print numbers.
{
printf("%d ", i);
}
printf("\n"); // Move to the next line.
spc--; // Decrease the number of spaces for the next row.
}
}
```

Output:

Input number of rows : 5 1 2 2 3 3 3 4 4 4 4 5 5 5 5 5

This C program generates a pyramid pattern where each row contains repeated numbers corresponding to the row number. For example, the first row displays '1', the second row displays '2 2', and so on, up to the specified number of rows. The program uses nested loops to create the pyramid structure, with careful formatting to align the numbers correctly.

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