Merge pull request #10 from Abhishek21sh/master

Create Program to print Lower triangular and Upper triangular matrix …

Program to print Lower triangular and Upper triangular matrix of an array

@@ -0,0 +1,63 @@
+// C++ program to print Lower
+// triangular and Upper triangular
+// matrix of an array
+#include<iostream>
+
+using namespace std;
+
+// Function to form
+// lower triangular matrix
+void lower(int matrix[3][3], int row, int col)
+{
+	int i, j;
+	for (i = 0; i < row; i++)
+	{
+		for (j = 0; j < col; j++)
+		{
+			if (i < j)
+			{
+				cout << "0" << " ";
+			}
+			else
+			cout << matrix[i][j] << " ";
+		}
+		cout << endl;
+	}
+}
+
+// Function to form upper triangular matrix
+void upper(int matrix[3][3], int row, int col)
+{
+	int i, j;
+
+	for (i = 0; i < row; i++)
+	{
+		for (j = 0; j < col; j++)
+		{
+			if (i > j)
+			{
+				cout << "0" << " ";
+			}
+			else
+			cout << matrix[i][j] << " ";
+		}
+		cout << endl;
+	}
+}
+
+// Driver Code
+int main()
+{
+	int matrix[3][3] = {{1, 2, 3},
+						{4, 5, 6},
+						{7, 8, 9}};
+	int row = 3, col = 3;
+
+	cout << "Lower triangular matrix: \n";
+	lower(matrix, row, col);
+
+	cout << "Upper triangular matrix: \n";
+	upper(matrix, row, col);
+
+	return 0;
+}