Added snippet to reverse bits of an integer

snippets/python/reverse_int_bits.md

@@ -0,0 +1,24 @@
+# Reverse bits of an integer
+*tags:* **bit manipulation, python**
+
+
+**Snippet**
+```python
+
+def reverseBits(n):
+    # Initially all bits are zero
+    reverseInt = 0
+    # Size of int is 32 bits
+    for bitPos in range(32):
+        # Check if bit at position "bitPos" is 1,
+        # If that bit is 0, then we don't need to add
+        # it to reverseInt since it won't make a difference
+        if n & (1 << bitPos):
+            # Change bit at "bitPos" to 1
+            reverseInt = reverseInt | (1 << (31-bitPos))
+
+    return revAns
+
+print(reverseBits(10))
+
+```