Question

Use nested for loops to generate the following patterns: C++

*****

*****

*****

(no space between rows of asterisks)

*

**

***

****

*****

(Again, no empty lines between rows)

*

**

***

**

*

(no lines between rows)

Last one, let the user pick the pattern by specifying the number of rows and columns.

Answer 1

#include <iostream>

using namespace std;

int main() {
for(int i=0;i<3;i++)
{
for(int j=0;j<4;j++)
cout<<"*";
cout<<endl;
}
}

#include <iostream>

using namespace std;

int main() {
for(int i=0;i<=5;i++)
{
for(int j=0;j<i;j++)
cout<<"*";
cout<<endl;
}
}

#include <iostream>
using namespace std;
int main()
{
int i, j, rows;
printf("Enter number of rows: ");
scanf("%d",&rows);
for(int i=0;i<rows;i++)
{
for(int j=0;j<i;j++)
cout<<"*";
cout<<endl;
}
for(i=rows; i>=1; --i)
{
for(j=1; j<=i; ++j)
{
cout<<"*";
}
cout<<endl;
}
  
return 0;
}