diff --git a/LeetCode/0190_Reverse_bits.py b/LeetCode/0190_Reverse_bits.py
new file mode 100644
index 0000000..cfd8a99
--- /dev/null
+++ b/LeetCode/0190_Reverse_bits.py
@@ -0,0 +1,5 @@
+class Solution:
+    def reverseBits(self, n: int) -> int:
+        
+        s='{0:032b}'.format(n)[::-1]
+        return int(s,2)
\ No newline at end of file
diff --git a/LeetCode/0191_Number_of_1_bits.py b/LeetCode/0191_Number_of_1_bits.py
new file mode 100644
index 0000000..8454fa0
--- /dev/null
+++ b/LeetCode/0191_Number_of_1_bits.py
@@ -0,0 +1,4 @@
+class Solution:
+    def hammingWeight(self, n: int) -> int:
+        
+        return '{0:b}'.format(n).count('1')
\ No newline at end of file