Added file

Pattern10GFG.cpp

@@ -0,0 +1,26 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	for (int i = 1; i <= n; i++)
+	{
+		for (int j = 0; j < i; j++)
+		{
+			cout << "* " ;
+		}
+		cout << endl;
+	}
+	for (int i = 1; i < n; i++)
+	{
+		for (int j = n; j > i; j--)
+		{
+			cout << "* ";
+		}
+		cout << endl;
+	}
+
+	return 0;
+}

Pattern11GFG.cpp

@@ -0,0 +1,27 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	for (int i = 1; i <= n; i++)
+	{
+		for (int j = 0; j < i; j++)
+		{
+			if ((i+j) % 2 == 0)
+			{
+				cout << "0 ";
+			}
+			else
+			{
+				cout << "1 ";
+			}
+
+		}
+		cout << endl;
+
+	}
+
+	return 0;
+}

Pattern12GFG.cpp

@@ -0,0 +1,31 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	for (int i = 1; i <= n; i++)
+	{
+		for (int j = 1; j <= i; j++)
+		{
+			cout << j << " ";
+		}
+		for (int j = i; j < n; j++)
+		{
+			cout << " " << " ";
+		}
+		for (int j = n - i; j > 0; j--)
+		{
+			cout << " " << " ";
+		}
+		for (int j = i; j > 0; j--)
+		{
+			cout << j << " ";
+		}
+
+		cout << endl;
+	}
+
+	return 0;
+}

Pattern13GFG.cpp

@@ -0,0 +1,24 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	int nk = 0;
+	int kk = 0;
+	for (int i = 1; i <= n; i++)
+	{
+		nk = kk;
+		for (int j = 1; j <= i; j++)
+		{
+			nk += 1;
+			cout << nk << " ";
+		}
+
+		kk = nk;
+		cout << endl;
+	}
+
+	return 0;
+}

Pattern14GFG.cpp

@@ -0,0 +1,19 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	for (int i = 1; i <= n; i++)
+	{
+		// A = 65
+		for (int j = 1; j <= i; j++)
+		{
+			cout << char(64 + j);
+		}
+		cout << endl;
+	}
+
+	return 0;
+}

Pattern15GFG.cpp

@@ -0,0 +1,20 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	int k = 0;
+	for (int i = 1; i <= n; i++)
+	{
+		// A = 65
+		for (int j = n, k = 0; j >= i; j--, k++)
+		{
+			cout << char(65 + k);
+		}
+		cout << endl;
+	}
+
+	return 0;
+}

Pattern16GFG.cpp

@@ -0,0 +1,19 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	for (int i = 1; i <= n; i++)
+	{
+		// A = 65
+		for (int j = 0; j < i; j++)
+		{
+			cout << char(64 + i);
+		}
+		cout << endl;
+	}
+
+	return 0;
+}

Pattern17GFG.cpp

@@ -0,0 +1,29 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	for (int i = 1; i <= n; i++)
+	{
+		for (int j = n; j > i; j--)
+		{
+			cout << " ";
+		}
+		for (int j = 0; j < i; j++)
+		{
+			cout << char(65 + j);
+		}
+		for (int j = i-1; j > 0; j--)
+		{
+			cout << char(64 + j);
+		}
+
+
+
+		cout << endl;
+	}
+
+	return 0;
+}

Pattern18GFG.cpp

@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	for (int i = n; i >= 1; i--)
+	{
+		for (int j = n; j >= i; j--)
+		{
+			cout << char(64 + j) << " ";
+		}
+		cout << endl;
+	}
+
+	return 0;
+}

Pattern19GFG.cpp

@@ -0,0 +1,116 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	// A =  65 
+	// Upper portion
+	for (int i = 0; i < n; i++)
+	{
+		// Upper Left
+		for (int j = n; j > i; j--)
+		{
+			cout << "*";
+		}
+		// Space for Upper Left
+		for (int j = 0; j < i; j++)
+		{
+			cout<<" ";
+		}
+		// Space for Upper Right
+		for (int j = 0; j < i; j++)
+		{
+			cout<<" ";
+		}
+		// Upper Right Pattern
+		for (int j = n; j > i; j--)
+		{
+			cout << "*";
+		}
+
+		cout << endl;
+	}
+	// Lower Portion
+	for (int i = n-1; i >= 0; i--)
+	{
+		// Lower Left
+		for (int j = n; j > i; j--)
+		{
+			cout << "*";
+		}
+		// Space for Lower Left
+		for (int j = 0; j < i; j++)
+		{
+			cout<<" ";
+		}
+		// Space for Lower Right
+		for (int j = 0; j < i; j++)
+		{
+			cout<<" ";
+		}
+		// Lower Right Pattern
+		for (int j = n; j > i; j--)
+		{
+			cout << "*";
+		}
+
+		cout << endl;
+	}
+	n = 10;
+	// Upper portion
+	for (int i = 0; i < n; i++)
+	{
+		// Upper Left
+		for (int j = n; j > i; j--)
+		{
+			cout << "*";
+		}
+		// Space for Upper Left
+		for (int j = 0; j < i; j++)
+		{
+			cout<<" ";
+		}
+		// Space for Upper Right
+		for (int j = 0; j < i; j++)
+		{
+			cout<<" ";
+		}
+		// Upper Right Pattern
+		for (int j = n; j > i; j--)
+		{
+			cout << "*";
+		}
+
+		cout << endl;
+	}
+	// Lower Portion
+	for (int i = n-1; i >= 0; i--)
+	{
+		// Lower Left
+		for (int j = n; j > i; j--)
+		{
+			cout << "*";
+		}
+		// Space for Lower Left
+		for (int j = 0; j < i; j++)
+		{
+			cout<<" ";
+		}
+		// Space for Lower Right
+		for (int j = 0; j < i; j++)
+		{
+			cout<<" ";
+		}
+		// Lower Right Pattern
+		for (int j = n; j > i; j--)
+		{
+			cout << "*";
+		}
+
+		cout << endl;
+	}
+
+	return 0;
+}

Pattern1GFG.cpp

@@ -0,0 +1,19 @@
+#include<iostream>
+using namespace std;
+
+int main() 
+{
+	int n;
+	n =  8;
+	int i, j;
+	for (i = 0; i < n; i++)
+	{
+		for (j = 0; j < n; j++)
+		{
+			cout << "* ";
+		}
+		cout << "" << endl;
+	}
+
+	return 0;
+}