added odd even number check

snippets/cpp/math-and-numbers/odd-even-check.md

@@ -0,0 +1,15 @@
+---
+title: cpp, number, bitwise, even, odd
+description : This code demonstrates the fastest way to check if a number is even or odd using bitwise operations. It's more efficient than using the modulor operator (%) since bitwise operations are performed at the CPU level.
+tags : cpp, number, even, odd, bitwise
+author : Beast177 
+---
+
+```cpp
+
+bool isEven(int num) {
+    return !(num & 1);
+}
+
+```
+