Code: Simple Triangle/ Half Pyramid | Basics of C++ - Software Development PDF Download

C++ Program for printing 4 different Triangle/Half Pyramid Programs

#include <iostream>

using namespace std;

void halfPyramidPattern1(int n)

{

    for (int i = 1; i <= n; i++) {

        for (int j = 1; j <= i; j++) {

            cout << "*";

        }

        cout << endl;

    }

}

void halfPyramidPattern2(int n)

{

    for (int i = n; i >= 1; i--) {

        for (int j = i; j > 0; j--) {

            cout << "*";

        }

        cout << endl;

    }

}

void halfPyramidPattern3(int n)

{

    for (int i = 1; i <= n; i++) {

        for (int k = n - i; k > 0; k--) {

            cout << " ";

        }

        for (int j = 1; j <= i; j++) {

            cout << "*";

        }

        cout << endl;

    }

}

void halfPyramidPattern4(int n)

{

    for (int i = n; i >= 1; i--) {

        for (int k = n - i; k > 0; k--) {

            cout << " ";

        }

        for (int j = i; j > 0; j--) {

            cout << "*";

        }

        cout << endl;

    }

}

int main()

{

    int num;

    cout << "Enter number of levels of the pattern :" << endl;

    cin >> num;

    halfPyramidPattern1(num);

    cout << endl;

    halfPyramidPattern2(num);

    cout << endl;

    halfPyramidPattern3(num);

    cout << endl;

    halfPyramidPattern4(num);

    return 0;

}