LeetCode-Solution-Python 说明 这个代码仓库是我在学习《算法与数据结构》的时候,在 LeetCode(英文版) 和LeetCode(中文版) 上做的练习, 。 所有的代码都是通过 LeetCode 在线测评系统检测的,至少是正确的代码,但不一定是时间复杂度和空间复杂度最优的。 建议您安装 Octotree 插件,以获得最佳的阅读体验
Find the sum of all left leaves in a given binary tree. Example: 3 / \ 9 20 / \ 15 7 There are two left leaves in the binary tree, with values 9 and 15 respectively. Return 24. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 ...
#Definition for a binary tree node.#class TreeNode(object):#def __init__(self, x):#self.val = x#self.left = None#self.right = NoneclassSolution(object):defmaxDepth(self, root):""":type root: TreeNode :rtype: int"""returnself.search(root, 0)defsearch(self, node, i):ifnodeis...
class MyQueue { private: stack<int> inStack, outStack; void in2out() { while (!inStack.empty()) { outStack.push(inStack.top()); inStack.pop(); } } public: MyQueue() {} void push(int x) { inStack.push(x); } int pop() { if (outStack.empty()) { in2out(); } int ...
solution feat: add solutions to lc problem: No.2434 (#4465) Jun 6, 2025 .clang-format style: update format options Sep 6, 2022 .editorconfig chore: add configuration file .editorconfig (#3336) Jul 31, 2024 .gitignore chore: update .gitignore Apr 26, 2025 ...
LeetCode 题库leetcode-cn.com/problemset/all/ 1.两数之和 思路1:两重循环,暴力破解,解决问题就行。。。算法复杂度O(n*n) class Solution(object): def twoSum(self, nums, target): for i in xrange(len(nums) - 1): for j in xrange(i+1, len(nums)): if nums[i] + nums[j] ==...
class Solution: def twoSum(self, nums: List[int], target: int) -> List[int]: hashtable = dict() for i, num in enumerate(nums): if target - num in hashtable: return [hashtable[target - num], i] hashtable[nums[i]] = i ...
然后室友说用了Python的库函数,排序(数组1+数组2)。 虽然觉得直接调库就没啥意思了,但是还是写了一个调库的,更高端的有空再研究。 classSolution{publicdoublefindMedianSortedArrays(int[]nums1,int[]nums2){//构建新数组int[]nums=newint[nums1.length+nums2.length];//将数组合并(采用arraycopy函数)if(...
Solution 2: Useset defnumJewelsInStones(self,J,S):f=set(J)returnsum([sinfforsinS]) Time complexity:O(|J|*|S|) The operationa in bhas different time complexity inlistandset, see here:https://wiki.python.org/moin/TimeComplexity ...
不需要安装，全都打包在一个jar包里，放到classpath底下就可以了。 最后把build.xml和problem.properties...