Example: Floyd Triangle Pattern Program in C++ language

C
C++
C#
Java
Python
PHP

// Floyd Triangle Pattern Program in C++ language
#include <iostream>
using namespace std;

int main() {
    int r, i, j, n = 1;
    // r - denotes the number of rows

    cout << "-----Kindly enter the number of rows to print Floyd's triangle number pattern-----\n";
    cin >> r;

    cout << "\n-----This is Floyd's triangle number pattern-----\n\n";
    for (i = 1; i <= r; i++) {
        cout << "\t";
        for (j = 1; j <= i; ++j) {
            cout << n << " ";
            ++n;
        }
        cout << "\n";
    }
    return 0;
}