Pattern 1:
/*
*
* *
* * *
* * * *
* * * * *
*/
#include <iostream>
using namespace std;
int main()
{
int i,j,rows;
cout<<"Enter the number of rows: ";
cin>>rows;
for(i=1;i<=rows;++i)
{
for(j=1;j<=i;++j)
{
cout<<"* ";
}
cout<<"n";
}
return 0;
}
Pattern 2:-
<br />/*
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
*/
#include <iostream>
using namespace std;
int main()
{
int i,j,rows;
cout<<"Enter the number of rows: ";
cin>>rows;
for(i=1;i<=rows;++i)
{
for(j=1;j<=i;++j)
{
cout<<j<<" ";
}
cout<<"n";
}
return 0;
}
Pattern 3:-
/*
* * * * *
* * * *
* * *
* *
*
*/
#include <iostream>
using namespace std;
int main()
{
int i,j,rows;
cout<<"Enter the number of rows: ";
cin>>rows;
for(i=rows;i>=1;--i)
{
for(j=1;j<=i;++j)
{
cout<<"* ";
}
cout<<"n";
}
return 0;
}
Pattern 4:-
/*
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
*/
#include <iostream>
using namespace std;
int main()
{
int i,j,rows;
cout<<"Enter the number of rows: ";
cin>>rows;
for(i=rows;i>=1;--i)
{
for(j=1;j<=i;++j)
{
cout<<j<<" ";
}
cout<<"n";
}
return 0;
}
Pattern 5:-(Pascal’s Triangle)
<br />#include<iostream>
using namespace std;
int main()
{
int rows;
cout << "Enter the number of rows : ";
cin >> rows;
cout << endl;
for (int i = 0; i < rows; i++)
{
int value = 1;
for (int j = 1; j < (rows - i); j++)
{
cout << " ";
}
for (int k = 0; k <= i; k++)
{
cout << " " << value;
value = value * (i - k) / (k + 1);
}
cout << endl << endl;
}
cout << endl;
return 0;
}
Pattern 6:-
(floyd’s Triangle)
#include <iostream>
using namespace std;
int main()
{
int rows,i,j,k=1;
cout<<"Enter number of rows: ";
cin>>rows;
for(i=1;i<=rows;i++)
{
for(j=1;j<=i;j++)
cout<<k++<<" ";
cout<<endl;
}
return 0;
}
Myprogworld 