adding algo

Author: ivan1016017

src/my_project/interviews/top_150_questions_round_19/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)

tests/test_150_questions_round_19/test_sqrtx_round_19.py

@@ -0,0 +1,17 @@
+import unittest
+from src.my_project.interviews.top_150_questions_round_19\
+.sqrtx import Solution
+
+class SqrtxTestCase(unittest.TestCase):
+
+    def test_even_sqrtx(self):
+        solution = Solution()
+        output = solution.mySqrt(x=4)
+        target = 2 
+        self.assertEqual(output, target)
+
+    def test_odd_sqrtx(self):
+        solution = Solution()
+        output = solution.mySqrt(x=8)
+        target = 2 
+        self.assertEqual(output, target)