idkProblem.cpp

#include <iostream>
#include <cstdio>


/*n = 1
1

n = 2
1 1 1
1 2 1
1 1 1

n=3
1 1 1 1 1 
1 2 2 2 1
1 2 3 2 1
1 2 2 2 1
1 1 1 1 1

n=4
1 1 1 1 1 1 1
1 2 2 2 2 2 1
1 2 3 3 3 2 1
1 2 3 4 3 2 1
1 2 3 3 3 2 1
1 2 2 2 2 2 1
1 1 1 1 1 1 1 


1 1 1 | 1 | 1 1 1 |
1 2 2 | 2 | 2 2 1  -> row < n
1 2 3 | 3 | 3 2 1 |
- - - - - - - - -
1 2 3 | 4 | 3 2 1  -> row == n
- - - - - - - - -
1 2 3 | 3 | 3 2 1 |
1 2 2 | 2 | 2 2 1  -> row > n
1 1 1 | 1 | 1 1 1 |
*/

void printQuadrant(int row, int column);

void printXAxis(int n, int column);

int main() {
    int n;

    std::cin >> n;

    int width = n + (n - 1);
    int height = width;

    for (int row = 1; row <= height; row++) { // row

        for (int column = 1; column <= width; column++) { // column
            
            if (row < n) {
                if (column != n) {
                    if (column < n)
                    {

                        printQuadrant(row, column);
                    }

                    else {

                        printQuadrant(row, n - (column - n));

                    }

                }
                else
                {
                    std::cout << row << " ";
                }


            } /* if the current row is equal to the input */ else if (row == n) {
                printXAxis(n, column);
            }
            else if (row > n)
            {
                if (column != n) {
                    if (column < n)
                    {

                        printQuadrant(n - (row - n), column);
                    }

                    else {

                        printQuadrant(n - (row - n), n - (column - n));

                    }

                }
                else
                {
                    std::cout << n - (row - n) << " ";
                }
            }
        }

            std::cout << "\n";
    }
}

void printQuadrant(int row, int column)  {
    if (row > column) {
        std::cout << column << " ";
    }

    if (row <= column) {
        std::cout << row << " ";
    }
}

void printXAxis(int n, int column) {
    if (column != n) {
        // Left side X Axis 
        if (column < n) {
            std::cout << column << " ";
        } /* Right Side X axis */ else {
            printf("%d ", n - (column - n));
        }   
    } /* the origin point */ else{
        std::cout << column << " ";
    }

}