diff --git a/LeetCode/0374_Guess_Number_Higher_or_Lower.py b/LeetCode/0374_Guess_Number_Higher_or_Lower.py
new file mode 100644
index 0000000..c2635db
--- /dev/null
+++ b/LeetCode/0374_Guess_Number_Higher_or_Lower.py
@@ -0,0 +1,20 @@
+class Solution(object):
+    def guessNumber(self, n: int) -> int:
+        """
+        # The guess API is already defined.
+        # @param num, your guess
+        # @return -1 if my number is lower, 1 if my number is higher, otherwise return 0
+        # def guess(num: int) -> int:
+        """
+        low = 1
+        high = n + 1
+        mid = low + ((high - low)/2)
+        res = guess(mid)
+        while (res != 0):
+            if res == 1:
+                low = mid
+            elif res == -1:
+                high = mid
+            mid = low + ((high - low)/2)
+            res = guess(mid)
+        return int(mid)