Print Upper Triangular Matrix

Matrix_Questions/UpperTriangularMatrix.Cpp

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+/**
+ * @file UpperTriangularMatrix.Cpp
+ * @author your name ([email protected])
+ * @brief
+ * @version 0.1
+ * @date 2024-03-12
+ *
+ * @copyright Copyright (c) 2024
+ *Write a program in C to print or display an upper triangular matrix.
+Test Data :
+Input the size of the square matrix : 3
+Input elements in the first matrix :
+element - [0],[0] : 1
+element - [0],[1] : 2
+element - [0],[2] : 3
+element - [1],[0] : 4
+element - [1],[1] : 5
+element - [1],[2] : 6
+element - [2],[0] : 7
+element - [2],[1] : 8
+element - [2],[2] : 9
+Expected Output :
+The matrix is :
+1 2 3
+4 5 6
+7 8 9
+
+Setting zero in upper triangular matrix
+
+1 0 0
+4 5 0
+7 8 9
+ */
+#include <bits/stdc++.h>
+using namespace std;
+int main()
+{
+    int n;
+    cout << "Enter size of Matrix: ";
+    cin >> n;
+    int arr[n][n];
+    for (int i = 0; i < n; i++)
+    {
+        for (int j = 0; j < n; j++)
+        {
+            cout << "Enter element of array at " << i << " " << j << " : ";
+            cin >> arr[i][j];
+        }
+        cout << endl;
+    }
+    for (int i = 0; i < n; i++)
+    {
+        for (int j = 0; j < n; j++)
+        {
+            if (j > i)
+            {
+                arr[i][j] = 0;
+            }
+        }
+    }
+    cout << endl;
+    cout << "Upper Triangular Matrix : [ " << endl;
+    for (int i = 0; i < n; i++)
+    {
+        for (int j = 0; j < n; j++)
+        {
+            cout << arr[i][j];
+        }
+        cout << endl;
+    }
+    cout << "]";
+}
+/**
+ * @brief
+ * Enter size of Matrix: 3
+Enter element of array at 0 0 : 1
+Enter element of array at 0 1 : 2
+Enter element of array at 0 2 : 3
+
+Enter element of array at 1 0 : 4
+Enter element of array at 1 1 : 5
+Enter element of array at 1 2 : 6
+
+Enter element of array at 2 0 : 7
+Enter element of array at 2 1 : 8
+Enter element of array at 2 2 : 9
+
+
+Upper Triangular Matrix : [
+100
+450
+789
+]
+ *
+ */