Abhinav8925 patch 3

Matrix Prod.cpp

@@ -0,0 +1,54 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+    int row1, col1, row2, col2;
+
+    cout << "Enter the number of rows and columns of the first matrix: ";
+    cin >> row1 >> col1;
+
+    cout << "Enter the number of rows and columns of the second matrix: ";
+    cin >> row2 >> col2;
+
+
+    if (col1 != row2) {
+        cout << "Matrix multiplication is not possible. Columns of the first matrix must be equal to rows of the second matrix." << endl;
+        return 1;
+    }
+
+    cout << "Enter elements of the first matrix:" << endl;
+    int matrix1[row1][col1];
+    for (int i = 0; i < row1; ++i) {
+        for (int j = 0; j < col1; ++j) {
+            cin >> matrix1[i][j];
+        }
+    }
+
+    cout << "Enter elements of the second matrix:" << endl;
+    int matrix2[row2][col2];
+    for (int i = 0; i < row2; ++i) {
+        for (int j = 0; j < col2; ++j) {
+            cin >> matrix2[i][j];
+        }
+    }
+
+    int result[row1][col2] = {{0}};
+
+    for (int i = 0; i < row1; ++i) {
+        for (int j = 0; j < col2; ++j) {
+            for (int k = 0; k < col1; ++k) {
+                result[i][j] += matrix1[i][k] * matrix2[k][j];
+            }
+        }
+    }
+
+    cout << "Result of matrix multiplication:" << endl;
+    for (int i = 0; i < row1; ++i) {
+        for (int j = 0; j < col2; ++j) {
+            cout << result[i][j] << " ";
+        }
+        cout << endl;
+    }
+
+    return 0;
+}

Maximum Rod Cutting.cpp

@@ -0,0 +1,26 @@
+
+#include <iostream>
+using namespace std;
+
+
+int max(int a, int b) { return (a > b)? a : b;}
+int max(int a, int b, int c) { return max(a, max(b, c));}
+
+
+int maxProd(int n)
+{
+
+	if (n == 0 || n == 1) return 0;
+
+	int max_val = 0;
+	for (int i = 1; i < n; i++)
+	max_val = max(max_val, i*(n-i), maxProd(n-i)*i);
+
+	return max_val;
+}
+
+int main()
+{
+	cout << "Maximum Product is " << maxProd(10);
+	return 0;
+}

Reverse string.cpp

@@ -0,0 +1,24 @@
+#include <iostream>
+#include <string>
+using namespace std;
+
+int main() {
+    string str;
+
+    // Input a string
+    cout << "Enter a string: ";
+    cin >> str;
+
+    // Initialize an empty string to store the reversed string
+    string reversedStr = "";
+
+    // Reverse the string
+    for (int i = str.length() - 1; i >= 0; i--) {
+        reversedStr += str[i];
+    }
+
+    // Display the reversed string
+    cout << "Reversed string: " << reversedStr << endl;
+
+    return 0;
+}