# C++ Exercises: Display Pascal's triangle like right angle triangle

## C++ For Loop: Exercise-46 with Solution

Write a C++ program to display Pascal's triangle like a right angle triangle.

**Sample Solution**:

**C++ Code :**

```
#include <iostream>
using namespace std;
int main()
{
int row,c=1,blk,i,j;
cout << "\n\n Display the Pascal's triangle lime right angle triangle:\n";
cout << "-------------------------------------------------------------\n";
cout << " Input number of rows: ";
cin >> row;
for(i=0;i<row;i++)
{
for(j=0;j<=i;j++)
{
if (j==0||i==0)
c=1;
else
c=c*(i-j+1)/j;
cout<<c<<" ";
}
cout<<endl;
}
}
```

Sample Output:

Display the Pascal's triangle lime right angle triangle: ------------------------------------------------------------- Input number of rows: 7 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1 1 6 15 20 15 6 1

**Flowchart: **

**C++ Code Editor:**

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**Previous:** Write a program in C++ to display Pascal's triangle like pyramid.

**Next:** Write a program in C++ to display such a pattern for n number of rows using number. Each row will contain odd numbers of number.
The first and last number of each row will be 1 and middle column will be the row number.

**What is the difficulty level of this exercise?**

## C++ Programming: Tips of the Day

**What is the "-->" operator in C/C++?**

--> is not an operator. It is in fact two separate operators, -- and >.

The conditional's code decrements x, while returning x's original (not decremented) value, and then compares the original value with 0 using the > operator.

To better understand, the statement could be written as follows:

while( (x--) > 0 )

Ref : https://bit.ly/3kOTBby

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