diff --git a/src/problem/mod.rs b/src/problem/mod.rs
index 5a24abe..ece688b 100644
--- a/src/problem/mod.rs
+++ b/src/problem/mod.rs
@@ -183,4 +183,5 @@ mod p215_kth_largest_element_in_an_array;
 mod p502_ipo;
 mod p373_find_k_pairs_with_smallest_sums;
 mod p295_find_median_from_data_stream;
-mod p67_add_binary;
\ No newline at end of file
+mod p67_add_binary;
+mod p190_reverse_bits;
\ No newline at end of file
diff --git a/src/problem/p190_reverse_bits.rs b/src/problem/p190_reverse_bits.rs
new file mode 100644
index 0000000..2ec39bb
--- /dev/null
+++ b/src/problem/p190_reverse_bits.rs
@@ -0,0 +1,24 @@
+/**
+ * [190] Reverse Bits
+ */
+pub struct Solution {}
+
+
+// submission codes start here
+
+impl Solution {
+    pub fn reverse_bits(x: u32) -> u32 {
+        x.reverse_bits() 
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_190() {
+    }
+}