# C++ Exercises: Display the pattern like right angle triangle with number increased by 1

## C++ For Loop: Exercise-38 with Solution

Write a C++ program to make such a pattern like a right angle triangle with the number increased by 1.

**Visual Presentation:**

**Sample Solution**:

**C++ Code :**

```
#include <iostream> // Include the input/output stream library
#include <string> // Include the string handling library
using namespace std; // Using standard namespace
int main() // Main function where the execution of the program starts
{
int i, j, rows, k = 1; // Declare integer variables i, j, rows, and k with k initialized to 1
// Display message asking for input
cout << "\n\n Display such a pattern like right angle triangle with number increased by 1:\n";
cout << "---------------------------------------------------------------------------------\n";
cout << " Input number of rows: ";
cin >> rows; // Read input for the number of rows from the user
// Loop to print the pattern with numbers increased by 1 in a right-angle triangle shape
for (i = 1; i <= rows; i++) // Loop for the number of rows
{
for (j = 1; j <= i; j++) // Nested loop for printing numbers in each row
{
cout << k++ << " "; // Print the value of 'k' (increased by 1) and increment 'k' afterwards
}
cout << endl; // Move to the next line after each row is printed
}
}
```

Sample Output:

Display such a pattern like right angle triangle with number increased by 1: --------------------------------------------------------------------------------- Input number of rows: 4 1 2 3 4 5 6 7 8 9 10

**Flowchart: **

**C++ Code Editor:**

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**Next:** Write a program in C++ to make such a pattern like a pyramid with numbers increased by 1.

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