solves convert a number to hexadecimal in python

Author: anishLearnsToCode

README.md

@@ -108,7 +108,7 @@
 | 392 | [Is Subsequence](https://leetcode.com/problems/is-subsequence) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/IsSubsequence.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/is_subsequence.py) |
 | 401 | [Binary Watch](https://leetcode.com/problems/binary-watch) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/BinaryWatch.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/binary_watch.py) |
 | 404 | [Sum of Left Leaves](https://leetcode.com/problems/sum-of-left-leaves) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/SumOfLeftLeaves.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/sum_of_left_leaves.py) |
-| 405 | [Convert a Number to Hexadecimal](https://leetcode.com/problems/convert-a-number-to-hexadecimal) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/ConvertNumberToHexadecimal.java) |
+| 405 | [Convert a Number to Hexadecimal](https://leetcode.com/problems/convert-a-number-to-hexadecimal) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/ConvertNumberToHexadecimal.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/convert_a_number_to_hexadecimal.py) |
 | 408 | [Valid Word Abbreviation](https://leetcode.com/problems/valid-word-abbreviation) | Easy | |
 | 409 | [Longest Palindrome](https://leetcode.com/problems/longest-palindrome) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/LongestPalindrome.java) |
 | 412 | [Fizz Buzz](https://leetcode.com/problems/fizz-buzz) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/FizzBuzz.java) |

python/convert_a_number_to_hexadecimal.py

@@ -0,0 +1,14 @@
+class Solution:
+    def __init__(self):
+        self.hex_chars = [str(i) for i in range(10)] + [chr(97 + i) for i in range(7)]
+
+    def toHex(self, num: int) -> str:
+        if num == 0:
+            return '0'
+        if num < 0:
+            num = 2 ** 32 + num
+        result = ''
+        while num != 0:
+            result = self.hex_chars[num & 15] + result
+            num = (num >> 4)
+        return result