C program to print square number pattern 4

Introduction

This guide will delve into creating a C program that generates a specific square number pattern, referred to as “square number pattern 4.” We’ll explore the logic, code structure, and key steps involved in crafting this pattern.

Understanding the Pattern

• The pattern consists of square numbers arranged in a square-shaped grid.
• Each row of the grid has the same number of elements as the row number itself.
• The first element of each row is 1, and subsequent elements are calculated by adding a constant value to the previous element.

Example Pattern (5 rows):

1
1 4
1 4 9
1 4 9 16
1 4 9 16 25

Steps to Implement

1. Include Necessary Header:

C

#include <stdio.h>

2. Declare Variables:

C

int rows, i, j;

3. Get Input for Number of Rows:

C

printf("Enter the number of rows: ");
scanf("%d", &rows);

4. Use Nested Loops to Print the Pattern:

C

for (i = 1; i <= rows; i++) {
    for (j = 1; j <= i; j++) {
        printf("%d ", j * j);  // Print square of j
    }
    printf("\n");  // Move to the next line after each row
}

Complete Example Code:

C

#include <stdio.h>

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

    printf("Enter the number of rows: ");
    scanf("%d", &rows);

    for (i = 1; i <= rows; i++) {
        for (j = 1; j <= i; j++) {
            printf("%d ", j * j);
        }
        printf("\n");
    }

    return 0;
}

Key Points to Remember

• The outer for loop iterates through each row of the pattern.
• The inner for loop iterates through each element within a row.
• The expression j * j calculates the square of j to generate the square numbers for the pattern.
• The printf("\n") statement creates a line break after each row, ensuring the square shape of the pattern.