init: hot100 algo project with .gitignore

.gitignore

@@ -0,0 +1,33 @@
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+.Python
+*.so
+*.egg
+*.egg-info/
+dist/
+build/
+.eggs/
+*.whl
+
+.env
+.venv
+env/
+venv/
+ENV/
+
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+.DS_Store
+Thumbs.db
+
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+htmlcov/
+.coverage

01-two-sum/solution.py

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+from typing import List
+
+class Solution:
+    def twoSum(self, nums: List[int], target: int) -> List[int]:
+        hash = {}
+        for i, num in enumerate(nums):
+            another = target - num
+            if another in hash:
+                return [hash[another], i]
+            hash[num] = i
+
+
+if __name__ == "__main__":
+    res = Solution().twoSum([2,7,11,15], 9)
+    print(res)