# C++ Exercises: Display the pattern like right angle triangle using number which will repeat the number for that row

## C++ For Loop: Exercise-37 with Solution

Write a program in C++ to make such a pattern like right angle triangle using number which will repeat the number for that row.

**Pictorial Presentation:**

**Sample Solution**:-

**C++ Code :**

```
#include <iostream>
using namespace std;
int main()
{
int i,j,rows;
cout << "\n\n Display the pattern using number repeating for a row:\n";
cout << "----------------------------------------------------------\n";
cout << " Input number of rows: ";
cin >> rows;
for(i=1;i<=rows;i++)
{
for(j=1;j<=i;j++)
cout<<i;
cout<<endl;
}
}
```

Sample Output:

Display the pattern using number repeating for a row: ---------------------------------------------------------- Input number of rows: 5 1 22 333 4444 55555

**Flowchart: **

**C++ Code Editor:**

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## C++ Programming: Tips of the Day

**Which is faster: Stack allocation or Heap allocation**

Stack allocation is much faster since all it really does is move the stack pointer. Using memory pools, you can get comparable performance out of heap allocation, but that comes with a slight added complexity and its own headaches.

Also, stack vs. heap is not only a performance consideration; it also tells you a lot about the expected lifetime of objects.

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

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