added BitTrick program that contains all small-small tricks of Bit Manipulation

BitTrick.cpp

@@ -0,0 +1,70 @@
+#include <bits/stdc++.h>
+using namespace std;
+int main()
+{
+    /**
+     * @brief Check the number is Power of 2 or not
+     *
+     */
+    int n;
+    cin >> n;
+    if (n & (n - 1))
+    {
+        cout << "NO";
+    }
+    else
+    {
+        cout << "YES";
+    }
+    /**
+     * @brief Convert UpperCase to LowerCase and Viceversa
+     *
+     */
+    char ch;
+    cin >> ch;
+    ch |= 1 << 5; // UpperCase to LowerCase
+    std::cout << ch << std::endl;
+    ch ^= 1 << 5; // LowerCase to UpperCase
+    std::cout << ch << std::endl;
+    /**
+     * @brief Find the number of set bits in a number
+     *
+     */
+    int n;
+    cin >> n;
+    std::cout << __builtin_popcount(n) << std::endl;
+    /**
+     * @brief Find the number which is not Repeated in the array
+     *
+     */
+    vector<int> arr = {1, 5, 2, 1, 3, 4, 5, 8, 4, 8, 3};
+    int ans = 0;
+    for (size_t i = 0; i < arr.size(); i++)
+    {
+        ans ^= arr[i];
+    }
+    std::cout << ans << std::endl;
+    /**
+     * @brief Odd Even using bits
+     *
+     */
+    int n;
+    cin >> n;
+    if (n & 1)
+    {
+        cout << "Odd";
+    }
+    else
+    {
+        cout << "Even";
+    }
+    /**
+     * @brief multiply by two and divide by two
+     *
+     */
+    int n;
+    cin >> n;
+    cout << (n << 1) << endl; // multiply by two
+    cout << (n >> 1) << endl; // divide by two
+    return 0;
+}