Question

C++

Write a complete program that will prompt the user for a

digit in the range 5 to 15. Using that digit to determin scale

display the graphic shown below. Your program must use a nested loop.

You may not use the string class

SAMPLE RUN:

Input an integer in the range 5 to 20: 100

Incorrect. The number is out of range.

Input an integer in the range 5 to 20: 10

*

**

***

****

*****

******

*******

********

*********

**********

Answer 1

#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
   int n;
   while(1)
   {
   cout<<"Input an integer in the range of 5 to 15: ";
   cin>>n;
   if(n>=5 && n<=15)
   {
       for(int i=1;i<=n;i++)
{
for(int j=1;j<=i;j++)
{
cout<<"*";
}
cout<<" ";
}
break;
   }
   else
   {
       cout<<"The number is out of range"<<endl;
   }
}
return 0;
}

Sample output:

Logic behind the code:

Here an infinite while loop is used inorder to print the patttern.

Once the value which is in the range is entered then the infinite while loop will terminate and the required pattern will be printed.

The value of n is checked inside an if condition.

If n value does not meet our condition then execution will go to else.