TL;DR 用循環(huán)的方式反轉(zhuǎn)鏈表,系列目錄見 前言和目錄 。 需求 實(shí)現(xiàn)方法 reverse() 用循環(huán)的方式反轉(zhuǎn)鏈表,鏈表應(yīng)該只遍歷一次。注意這個(gè)函數(shù)直接修改了鏈表本身,所以不需要返回值。 var list = 2 -> 1 -> 3 -> 6 -> 5 -> null reverse(lis...
...ft-right-root order指的是root的位置。 recursive算法比較簡(jiǎn)單,iterative算法比較難想,可是leetcode原題都說了: recursive method is trivial, could you do iteration? 144.Binary Tree Preorder Traversal /*iterative*/ public List pr...
...:Solution 1:解二叉樹的題目一般如果難度為easy,則要求iterative和recursive都會(huì)寫,二叉樹的最深深度是左子樹和右子樹的Max深度,根據(jù)這一特性,我們自底向上,時(shí)間復(fù)雜度O(n), Space O(1), 但因?yàn)槭沁f歸,所以會(huì)占用stack,recursive...
...s of applications that current computing frameworks handle inefficiently: iterative algorithms; interactive data mining tools; In both cases, keeping data in memory can improve performance by an ...
...root.left = right; root.right = left; return root; } } Iterative class Solution { public TreeNode invertTree(TreeNode root) { if (root == null) return root; ...
... list. click to show more hints. Hint:A linked list can be reversed either iteratively or recursively. Could you implement both? 既然問了能否iteratively or recursively, 那就both把. iterative 解法: 總結(jié)就是得到下一個(gè)節(jié)...
... root.right = helper(mid + 1, end, A); return root; } } Iterative class Solution { public TreeNode sortedArrayToBST(int[] nums) { if (nums == null || nums.length == 0...
直觀定義 迭代法(Iterative Method),簡(jiǎn)單來說,其實(shí)就是不斷地用舊的變量值,遞推計(jì)算新的變量值。循環(huán)。 具體應(yīng)用 求數(shù)值的精確/近似解 二分法(Bisection method) 牛頓迭代法(Newton’s method) 在一定范圍內(nèi)查找目標(biāo)值...
...DFS)或者Breadth First Search(BFS)。這兩種辦法分別可以用迭代(iterative)或者遞歸(recursive)的辦法實(shí)現(xiàn)。 算法復(fù)雜度: 遞歸: 時(shí)間:O(n) where n is the number of nodes 空間:O(n) DFS/BFS: 時(shí)間:O(n) where n is the number of nodes 空間:O(n) 代碼: ...
...it Front back split Shuffle Merge Sorted Merge Merge sort Sorted Intersect Iterative Reverse Recursive Reverse
...res += sumOfLeftLeaves(root.right); return res; } } Solution - Iterative class Solution { public int sumOfLeftLeaves(TreeNode root) { if (root == null) return 0; int...
...方法,三種方法是三種思考問題的思路,都掌握才好。1.Iterative的解法: public List preorderTraversal(TreeNode root) { List result = new ArrayList(); Stack stack = new Stack(); if (root == null) return result; ...
...t的話,整個(gè)存儲(chǔ)的順序會(huì)變反,所以要插入存儲(chǔ)進(jìn)去。1.Iterative解答: public class Solution { public List postorderTraversal(TreeNode root) { List result = new ArrayList(); Stack stack = new Stack(); ...
ChatGPT和Sora等AI大模型應(yīng)用,將AI大模型和算力需求的熱度不斷帶上新的臺(tái)階。哪里可以獲得...
大模型的訓(xùn)練用4090是不合適的,但推理(inference/serving)用4090不能說合適,...
圖示為GPU性能排行榜,我們可以看到所有GPU的原始相關(guān)性能圖表。同時(shí)根據(jù)訓(xùn)練、推理能力由高到低做了...