添加解题文件

Author: AlphaCatMeow

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/

1.两数之和.py

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+#
+# @lc app=leetcode.cn id=1 lang=python3
+#
+# [1] 两数之和
+#
+
+# @lc code=start
+class Solution:
+    def twoSum(self, nums: List[int], target: int) -> List[int]:
+        ans = dict()
+        for i in range(len(nums)):
+            if target - nums[i] in ans:
+                return [ans[target - nums[i]], i]
+            ans[nums[i]] = i
+# @lc code=end
+

206.反转链表.py

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+#
+# @lc app=leetcode.cn id=206 lang=python3
+#
+# [206] 反转链表
+#
+
+# @lc code=start
+# Definition for singly-linked list.
+# class ListNode:
+#     def __init__(self, val=0, next=None):
+#         self.val = val
+#         self.next = next
+class Solution:
+    def reverseList(self, head: ListNode) -> ListNode:
+# @lc code=end
+

27.移除元素.py

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+#
+# @lc app=leetcode.cn id=27 lang=python3
+#
+# [27] 移除元素
+#
+
+# @lc code=start
+class Solution:
+    def removeElement(self, nums: List[int], val: int) -> int:
+        l = 0
+        for r in nums:
+            if r != val:
+                nums[l] = r
+                l += 1
+
+        return l
+# @lc code=end
+

283.移动零.py

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+#
+# @lc app=leetcode.cn id=283 lang=python3
+#
+# [283] 移动零
+#
+
+# @lc code=start
+class Solution:
+    def moveZeroes(self, nums: List[int]) -> None:
+        """
+        Do not return anything, modify nums in-place instead.
+        """
+        n = len(nums)
+        l = r = 0
+        while r < n:
+            if nums[r] != 0:
+                nums[l], nums[r] = nums[r], nums[l]
+                l += 1
+            r += 1
+# @lc code=end
+

485.最大连续-1-的个数.py

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+#
+# @lc app=leetcode.cn id=485 lang=python3
+#
+# [485] 最大连续 1 的个数
+#
+
+# @lc code=start
+class Solution:
+    def findMaxConsecutiveOnes(self, nums: List[int]) -> int:
+        count = 0
+        ans = 0
+        for i in nums:
+            if i == 1:
+                count += 1
+                if ans < count:
+                    ans = count
+            else:
+                count = 0
+        return ans
+# @lc code=end
+

README.md

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+# AlgorithmPractices
+Algorithm Practices in Python3