Write a CPP program that prompts the user to enter the number of lines and generates the following pattern of stars. If the nonnegative integer is 4, then the pattern generated is:


***
**
*
*
**
***

Also, write a program that prompts the user to enter the number of lines in the pattern and uses the recursive function to generate the pattern. For example, specifying 4 as the number of lines generates the above pattern.

main. cpp

#include
using namespace std;

void printStars(int lines);

int main()
{
// prompt the user to enter a number

// call printStars

return 0;
}

void printStars(int lines)
{
// write your star pattern function here
}



Without Recursives

// Program is written using C++

// Comments are used for explanatory purpose

int main()

{

// Declare integer number, n

int n;

cout<<"Enter number of starts to print"

cin>>n;

// Iterate through to print * pattern

for(i=n; i>0;i--)

{

for(j=n; i>j-1;j--)

{

cout<<"*";

}

cout<"\n";

}

for(i=0; i< n; i++)

{

for(j=0;j<=i;j++)

{

cout<<"*";;

}

cout<"\n";

}

return 0;

}

Using Recursive

#include <iostream>

using namespace std;

void printStars(int lines);

int main()

{

// prompt the user to enter a number

int lines;

cin>> lines;

printStars(int lines);

return 0;

}

void printStars(int lines)

{

if (lines < 1)

return;

// to print the stars of a particular row

if (i <= lines)

{

cout << "* ";

// recursively print rest of the stars

// of the row

printPatternRecur(lines, i + 1);

}

else

{

// change line

cout << endl;

// print stars

printPatternRecur(lines-1, 1);

}

}

answer:

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