Example: Solid Diamond Pattern in C++

// Solid Diamond Pattern
#include <iostream>
using namespace std;

int main() {
    int size = 3; // Define the size of the diamond (number of rows in the upper half)

    // Step 1: Print the upper half of the diamond (including the middle row)
    for (int i = 1; i <= size; i++) {
        // Print leading spaces
        for (int j = 1; j <= size - i; j++) {
            cout << " ";
        }
        // Print stars
        for (int k = 1; k <= 2 * i - 1; k++) {
            cout << "*";
        }
        cout << endl; // Move to the next line
    }

    // Step 2: Print the lower half of the diamond (excluding the middle row)
    for (int i = size - 1; i >= 1; i--) {
        // Print leading spaces
        for (int j = 1; j <= size - i; j++) {
            cout << " ";
        }
        // Print stars
        for (int k = 1; k <= 2 * i - 1; k++) {
            cout << "*";
        }
        cout << endl; // Move to the next line
    }

    return 0;
}