Example: Pascal Triangle Pattern in C++ language of Numbers

C
C++
C#
Java
Python
PHP
// Pascal Triangle Pattern in C++ language of Numbers
#include <iostream>
#include <iomanip>
using namespace std;

int main() {
    int r, co = 1, ws, i, j;
    // r - denotes the number of rows
    // co - denotes the coefficient value
    // ws - denotes the white space

    cout << "-----Enter the number of rows to print the pattern-----\n";
    cin >> r;

    cout << "\n-----This is the pascal triangle pattern-----\n\n";
    for (i = 0; i < r; i++) {
        cout << "\t";
        for (ws = 1; ws <= r - i; ws++) {
            cout << "  ";
        }
        
        for (j = 0; j <= i; j++) {
            if (j == 0 || i == 0)
                co = 1;
            else
                co = co * (i - j + 1) / j;
            cout << std::setw(4) << co;
        }
        cout << "\n";
    }
    return 0;
}