Left Triangle C++ Example Program in C++

About this program

This is an example program in c pattern example programs. Read the concept first: Control Structures in C++, then study the code and output below.

Simple C++ Program for Print Left Triangle Pattern

/*## Simple C++ Program for Print Left Triangle Pattern Example Program */
/*## Basic Pattern C++ Programs,Left Triangle Pattern  C++  Programming*/

// Header Files
#include <iostream>
#include<conio.h>

using namespace std;

int main() {

    // Declare Variables
    int rows, i, j;

    cout << "Simple C++ Example Program for Print Left Triangle Pattern\n";

    //Read Day Value
    cout << "Enter the number of rows : ";
    cin>>rows;

    //Print Left Triangle Pattern
    for (i = 1; i <= rows; i++) {
        for (j = 1; j <= i; j++) {
            cout << "* ";
        }
        cout << "\n";
    }

    getch();
    return 0;
}

Sample Output

Enter the number of rows : 7
*
**
***
****
*****
******
*******

How It Works

This C++ program demonstrates Left Triangle. It first reads the required values as input, then walks through the data with a loop to compute the result, and finally prints the output shown in the Sample Output above.

1. Declare the variables that hold the program’s data.
2. Read the input values that the program will work with.
3. Iterate over the data using a loop to apply the logic.
4. Print the final result to the console so you can compare it with the sample output.

Try changing the input values and re-running the program to see how the output changes — this is the fastest way to understand how the logic behaves.

Related Pages

Learn the concept first, then study the code:

• C++ Programs — Browse all C++ Programs.
• Control Structures in C++ — Concept — loops used in pattern programs.
• Simple C++ Program for Print Inverted Left Triangle Pattern — More in c pattern example programs.
• Simple C++ Program for Print Triangle Pattern Example — More in c pattern example programs.