Example: Centered Number Pyramid in C++

C
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// Centered Number Pyramid
#include <iostream>
using namespace std;

int main() {
    int rows = 5; // Number of rows for the pyramid

    // Outer loop for rows
    for (int i = 1; i <= rows; ++i) {
        // Loop to print leading spaces for centering
        // The number of spaces decreases as 'i' increases
        for (int space = 1; space <= rows - i; ++space) {
            cout << " ";
        }

        // Loop to print increasing numbers (1 to i)
        for (int j = 1; j <= i; ++j) {
            cout << j;
        }

        // Loop to print decreasing numbers (i-1 down to 1)
        // This creates the symmetrical part of the pyramid
        for (int k = i - 1; k >= 1; --k) {
            cout << k;
        }
        cout << endl; // Move to the next line
    }
    return 0;
}