Rotate_array_90degree added

.vscode/tasks.json

@@ -0,0 +1,28 @@
+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: gcc.exe build active file",
+            "command": "C:\\msys64\\ucrt64\\bin\\gcc.exe",
+            "args": [
+                "-fdiagnostics-color=always",
+                "-g",
+                "${file}",
+                "-o",
+                "${fileDirname}\\${fileBasenameNoExtension}.exe"
+            ],
+            "options": {
+                "cwd": "${fileDirname}"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "detail": "Task generated by Debugger."
+        }
+    ],
+    "version": "2.0.0"
+}

Array/Rotate_array_90degree.cpp

@@ -0,0 +1,71 @@
+
+#include <iostream>
+#include <vector>
+using namespace std;
+
+void rotateMatrix(vector<vector<int>> &matrix)
+{
+    int rows = matrix.size();
+    int cols = matrix[0].size();
+
+    // Create a new matrix to store rotated values
+    vector<vector<int>> rotated(cols, vector<int>(rows));
+
+    // Rotate the matrix (90 degrees clockwise)
+    for (int i = 0; i < rows; i++)
+    {
+        for (int j = 0; j < cols; j++)
+        {
+            rotated[j][rows - 1 - i] = matrix[i][j];
+        }
+    }
+
+    // Copy rotated matrix back to original matrix
+    matrix = rotated;
+}
+
+int main()
+{
+    int rows, cols;
+    cout << "Enter number of rows: ";
+    cin >> rows;
+    cout << "Enter number of columns: ";
+    cin >> cols;
+
+    vector<vector<int>> matrix(rows, vector<int>(cols));
+
+    // Input matrix elements
+    cout << "Enter matrix elements:\n";
+    for (int i = 0; i < rows; i++)
+    {
+        for (int j = 0; j < cols; j++)
+        {
+            cin >> matrix[i][j];
+        }
+    }
+
+    cout << "\nOriginal Matrix:\n";
+    for (const auto &row : matrix)
+    {
+        for (int val : row)
+        {
+            cout << val << " ";
+        }
+        cout << endl;
+    }
+
+    // Rotate the matrix
+    rotateMatrix(matrix);
+
+    cout << "\nRotated Matrix (90 degrees clockwise):\n";
+    for (const auto &row : matrix)
+    {
+        for (int val : row)
+        {
+            cout << val << " ";
+        }
+        cout << endl;
+    }
+
+    return 0;
+}

Bitmasking/.vscode/tasks.json

@@ -0,0 +1,28 @@
+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: gcc.exe build active file",
+            "command": "C:\\msys64\\ucrt64\\bin\\gcc.exe",
+            "args": [
+                "-fdiagnostics-color=always",
+                "-g",
+                "${file}",
+                "-o",
+                "${fileDirname}\\${fileBasenameNoExtension}.exe"
+            ],
+            "options": {
+                "cwd": "${fileDirname}"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "detail": "Task generated by Debugger."
+        }
+    ],
+    "version": "2.0.0"
+}

Bitmasking/maximum_xor_2numbers.cpp

@@ -0,0 +1,21 @@
+// C++ program to find the maximum
+// XOR value of two elements in an array
+#include <bits/stdc++.h>
+using namespace std;
+
+// Function to find the maximum XOR
+int maxXOR(vector<int> &arr) {
+    int res = 0;
+    for (int i = 0; i < arr.size(); i++) {
+        for (int j = i + 1; j < arr.size(); j++) {
+            res = max(res, arr[i] ^ arr[j]);
+        }
+    }
+    return res;
+}
+
+int main() {
+    vector<int> arr = {25, 10, 2, 8, 5, 3};
+    cout << maxXOR(arr);
+    return 0;
+}