Merge pull request #1432 from ivan1016017/october22

adding algo

Author: ivanpenaloza

src/my_project/interviews/top_150_questions_round_20/sqrtx.py

@@ -0,0 +1,20 @@
+from typing import List, Union, Collection, Mapping, Optional
+from abc import ABC, abstractmethod
+
+class Solution:
+    def mySqrt(self, x: int) -> int:
+
+        left, right = 0, x 
+
+        while left <= right:
+
+            mid = (left + right)//2
+
+            if mid**2 < x:
+                left = mid + 1
+            elif mid**2 > x:
+                right = mid - 1
+            else: 
+                return mid 
+            
+        return min(left, right)