5 files changed, 36 insertions, 18 deletions

diff --git a/1_array_hashing/contains_duplicate.py b/1_array_hashing/contains_duplicate.py
index e437e4f..1410d4d 100644
--- a/1_array_hashing/contains_duplicate.py
+++ b/1_array_hashing/contains_duplicate.py
@@ -20,7 +20,6 @@ Input: nums = [1, 2, 3, 4]
 Output: false
 """
 
-
 from typing import List
 
 
@@ -35,7 +34,7 @@ class Solution:
 
     # 3. hashset
     def hashset(self, nums: List[int]) -> bool:
-        hs = set()
+        hs: set = set()
         for i in range(len(nums)):
             if nums[i] in hs:
                 return True
@@ -70,6 +69,7 @@ space: O(1)
 time: O(n)
 space: O(n)
 code:
+```python
 class Solution:
     def hasDuplicate(self, nums: List[int]) -> bool:
         hashset = set()
@@ -79,4 +79,5 @@ class Solution:
                 return True
             hashset.add(n)
         return False
+```
 """
diff --git a/1_array_hashing/group_anagram.py b/1_array_hashing/group_anagram.py
index f302afa..35b09ae 100644
--- a/1_array_hashing/group_anagram.py
+++ b/1_array_hashing/group_anagram.py
@@ -38,7 +38,7 @@ from typing import List
 
 class Solution:
     def dictionary(self, strs: List[str]) -> List[List[str]]:
-        res = defaultdict(List)
+        res = defaultdict(list)
         for s in strs:
             count = [0] * 26
             for c in s:
@@ -62,8 +62,12 @@ Solution
 
 url: https://neetcode.io/problems/anagram-groups
 video: https://youtu.be/vzdNOK2oB2E
+
+1. dictionary
+time:
+space:
 code:
-```dictionary
+```python
 class Solution:
     def groupAnagrams(self, strs: List[str]) -> List[List[str]]:
         ans = defaultdict(list)
diff --git a/1_array_hashing/top_k_elements.py b/1_array_hashing/top_k_elements.py
index e4b0e12..e1bd5b8 100644
--- a/1_array_hashing/top_k_elements.py
+++ b/1_array_hashing/top_k_elements.py
@@ -50,8 +50,12 @@ Solution
 
 url: url
 video: video
+
+1.
+time:
+space:
 code:
-```fn_name
-code
+```python
+
 ```
 """
diff --git a/1_array_hashing/two_sum.py b/1_array_hashing/two_sum.py
index 76ea68d..534ec87 100644
--- a/1_array_hashing/two_sum.py
+++ b/1_array_hashing/two_sum.py
@@ -37,7 +37,6 @@ Constraints:
     -10,000,000 <= target <= 10,000,000
 """
 
-
 from typing import List
 
 
@@ -70,7 +69,12 @@ Solution
 
 url: https://neetcode.io/problems/two-integer-sum
 video: https://youtu.be/KLlXCFG5TnA
-code: 
+
+1. hashmap
+time:
+space:
+code:
+```python
 class Solution:
     def twoSum(self, nums: List[int], target: int) -> List[int]:
         prevMap = {}  # val -> index
@@ -80,4 +84,5 @@ class Solution:
             if diff in prevMap:
                 return [prevMap[diff], i]
             prevMap[n] = i
+```
 """
diff --git a/1_array_hashing/valid_anagram.py b/1_array_hashing/valid_anagram.py
index 9b64df3..21a756e 100644
--- a/1_array_hashing/valid_anagram.py
+++ b/1_array_hashing/valid_anagram.py
@@ -25,12 +25,14 @@ Constraints:
     - s and t consist of lowercase English letters.
 """
 
+
 class Solution:
     def hashmap(self, s: str, t: str) -> bool:
         if len(s) != len(t):
             return False
 
-        countS, countT = {}, {}
+        countS: dict = {}
+        countT: dict = {}
 
         for i in range(len(s)):
             countS[s[i]] = 1 + countS.get(s[i], 0)
@@ -38,18 +40,18 @@ class Solution:
         return countS == countT
 
 
-case1S = "apple"
-case1T = "plpea"
-case2S = "asneaxl"
-case2T = "yejindp"
-case3S = "iloveyou"
-case3T = "youlovei"
+caseS1 = "racecar"
+caseT1 = "carrace"
+caseS2 = "jar"
+caseT2 = "jam"
+caseS3 = "asneaxl"
+caseT3 = "jinyedp"
 
 solution = Solution()
 
-print(f"hashmap case1: {solution.hashmap(case1S, case1T)}")
-print(f"hashmap case2: {solution.hashmap(case2S, case2T)}")
-print(f"hashmap case3: {solution.hashmap(case3S, case3T)}")
+print(f"hashmap case1: {solution.hashmap(caseS1, caseT1)}")
+print(f"hashmap case2: {solution.hashmap(caseS2, caseT2)}")
+print(f"hashmap case3: {solution.hashmap(caseS3, caseT3)}")
 
 """
 Solution
@@ -64,6 +66,7 @@ space: O(1)
 time: O(s+t)
 space: O(s+t)
 code:
+```python
 class Solution:
     def isAnagram(self, s: str, t: str) -> bool:
         if len(s) != len(t):
@@ -75,4 +78,5 @@ class Solution:
             countS[s[i]] = 1 + countS.get(s[i], 0)
             countT[t[i]] = 1 + countT.get(t[i], 0)
         return countS == countT
+```
 """