From 5600eb48112713d291274598ae50fa034d37ad78 Mon Sep 17 00:00:00 2001
From: ivan <ivan1016017@gmail.com>
Date: Fri, 10 Apr 2026 04:28:49 -0600
Subject: [PATCH] adding algo

---
 .../common_algos/two_sum_round_5.py           | 21 ++++++++++++++++++
 .../common_algos/valid_palindrome_round_5.py  | 22 +++++++++++++++++++
 .../ex_126_palindrome_number.py               |  9 ++++++++
 .../ex_126_palindrome_number.ts               | 11 ++++++++++
 .../test_126_palindrome_number_round_22.py    | 15 +++++++++++++
 5 files changed, 78 insertions(+)
 create mode 100644 src/my_project/interviews/amazon_high_frequency_23/common_algos/two_sum_round_5.py
 create mode 100644 src/my_project/interviews/amazon_high_frequency_23/common_algos/valid_palindrome_round_5.py
 create mode 100644 src/my_project/interviews/top_150_questions_round_22/ex_126_palindrome_number.py
 create mode 100644 src/my_project/interviews_typescript/top_150_questions_round_1/ex_126_palindrome_number.ts
 create mode 100644 tests/test_150_questions_round_22/test_126_palindrome_number_round_22.py

diff --git a/src/my_project/interviews/amazon_high_frequency_23/common_algos/two_sum_round_5.py b/src/my_project/interviews/amazon_high_frequency_23/common_algos/two_sum_round_5.py
new file mode 100644
index 00000000..c7f907c0
--- /dev/null
+++ b/src/my_project/interviews/amazon_high_frequency_23/common_algos/two_sum_round_5.py
@@ -0,0 +1,21 @@
+from typing import List, Union, Collection, Mapping, Optional
+from abc import ABC, abstractmethod
+
+class Solution:
+    def twoSum(self, nums: List[int], target: int) -> List[int]:
+
+        answer = dict()
+
+        for k, v in enumerate(nums):
+
+            if v in answer:
+                return [answer[v], k]
+            else:
+                answer[target - v] = k
+            
+        return []
+
+
+
+        
+
diff --git a/src/my_project/interviews/amazon_high_frequency_23/common_algos/valid_palindrome_round_5.py b/src/my_project/interviews/amazon_high_frequency_23/common_algos/valid_palindrome_round_5.py
new file mode 100644
index 00000000..fa21021b
--- /dev/null
+++ b/src/my_project/interviews/amazon_high_frequency_23/common_algos/valid_palindrome_round_5.py
@@ -0,0 +1,22 @@
+from typing import List, Union, Collection, Mapping, Optional
+from abc import ABC, abstractmethod
+import re
+
+class Solution:
+    def isPalindrome(self, s: str) -> bool:
+
+        # To lowercase
+        s = s.lower()
+
+        # Remove non-alphanumeric characters
+        s = re.sub(pattern=r'[^a-zA-Z0-9]', repl='', string=s)
+
+        # Determine if s is palindrome or not
+        len_s = len(s)
+
+        for i in range(len_s//2):
+
+            if s[i] != s[len_s - 1 - i]:
+                return False
+            
+        return True 
diff --git a/src/my_project/interviews/top_150_questions_round_22/ex_126_palindrome_number.py b/src/my_project/interviews/top_150_questions_round_22/ex_126_palindrome_number.py
new file mode 100644
index 00000000..80952ebd
--- /dev/null
+++ b/src/my_project/interviews/top_150_questions_round_22/ex_126_palindrome_number.py
@@ -0,0 +1,9 @@
+from typing import List, Union, Collection, Mapping, Optional
+from abc import ABC, abstractmethod
+
+class Solution:
+    def isPalindrome(self, x: int) -> bool:
+
+        str_x = str(x)
+
+        return str_x == str_x[::-1]
\ No newline at end of file
diff --git a/src/my_project/interviews_typescript/top_150_questions_round_1/ex_126_palindrome_number.ts b/src/my_project/interviews_typescript/top_150_questions_round_1/ex_126_palindrome_number.ts
new file mode 100644
index 00000000..6506c3d0
--- /dev/null
+++ b/src/my_project/interviews_typescript/top_150_questions_round_1/ex_126_palindrome_number.ts
@@ -0,0 +1,11 @@
+function isPalindrome(x: number): boolean {
+    if (x < 0 || (x % 10 === 0 && x !== 0)) return false;
+
+    let reversed = 0;
+    while (x > reversed) {
+        reversed = reversed * 10 + (x % 10);
+        x = Math.floor(x / 10);
+    }
+
+    return x === reversed || x === Math.floor(reversed / 10);
+};
\ No newline at end of file
diff --git a/tests/test_150_questions_round_22/test_126_palindrome_number_round_22.py b/tests/test_150_questions_round_22/test_126_palindrome_number_round_22.py
new file mode 100644
index 00000000..06a83872
--- /dev/null
+++ b/tests/test_150_questions_round_22/test_126_palindrome_number_round_22.py
@@ -0,0 +1,15 @@
+import unittest
+from src.my_project.interviews.top_150_questions_round_22\
+.ex_126_palindrome_number import Solution
+
+class PalindromeNumberTestCase(unittest.TestCase):
+
+    def test_is_palindrome_number(self):
+        solution = Solution()
+        output = solution.isPalindrome(x=121)
+        self.assertTrue(output)
+
+    def test_is_no_palindrome_number(self):
+        solution = Solution()
+        output = solution.isPalindrome(x=123)
+        self.assertFalse(output)
\ No newline at end of file