two-sum and valid-anagram

Author: SamTheKorean

two-sum/Bumsu-Yi.py

@@ -1,5 +1,15 @@
 """
 https://leetcode.com/problems/two-sum/
 """
-#
 
+
+class Solution:
+    def twoSum(self, nums: List[int], target: int) -> List[int]:
+        numMap = {}
+
+        for i in range(len(nums)):
+            complement = target - nums[i]
+            if complement in numMap:
+                return [numMap[complement], i]
+
+            numMap[nums[i]] = i

valid-anagram/Bumsu-Yi.py

@@ -1,3 +1,17 @@
 """
 https://leetcode.com/problems/valid-anagram/
 """
+
+
+class Solution:
+    def isAnagram(self, s: str, t: str) -> bool:
+        my_dict1 = {}
+        my_dict2 = {}
+
+        for char in s:
+            my_dict1[char] = my_dict1.get(char, 0) + 1
+
+        for char in t:
+            my_dict2[char] = my_dict2.get(char, 0) + 1
+
+        return my_dict1 == my_dict2