Given an array A of integers, a ramp is a tuple (i, j) for which i < j and A[i] <= A[j]. The width of such a ramp is j - i. Find the maximum width of a ramp in A. If one doesn't exist, return 0. Example 1: Input: [6,0,8,2,1,5] Output: 4 Explanatio…
题目如下: Given an array A of integers, a ramp is a tuple (i, j) for which i < j and A[i] <= A[j]. The width of such a ramp is j - i. Find the maximum width of a ramp in A. If one doesn't exist, return 0. Example 1: Input: [6,0,8,2,1,5] Output: 4 Expl…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 单调栈 日期 题目地址:https://leetcode.com/problems/maximum-width-ramp/ 题目描述 Given an array A of integers, a ramp is a tuple (i, j) for which i < j and A[i] <= A[j]. The width of such a…
本题题意: 在数组中,找到最大的j-i,使得i<j and A[i] <= A[j] 思路: 维持一个递减的栈,遇到比栈顶小的元素,进栈: 比大于等于栈顶的元素-> 找到栈中第一个小于等于该元素的下标 时间:O(Nlgn),空间:O(N) List<Integer> s = new ArrayList<>(); int res = 0; for (int i = 0; i < A.length; i++){ if (s.isEmpty() || A[ s.g…
Given an array A of integers, a ramp is a tuple (i, j) for which i < j and A[i] <= A[j]. The width of such a ramp is j - i. Find the maximum width of a ramp in A. If one doesn't exist, return 0. Example 1: Input: [6,0,8,2,1,5] Output: 4 Explanatio…
Given an array A of integers, a ramp is a tuple (i, j) for which i < j and A[i] <= A[j]. The width of such a ramp is j - i. Find the maximum width of a ramp in A. If one doesn't exist, return 0. Example 1: Input: [6,0,8,2,1,5] Output: 4 Explanatio…
Given an array A of integers, a ramp is a tuple (i, j) for which i < j and A[i] <= A[j]. The width of such a ramp is j - i. Find the maximum width of a ramp in A. If one doesn't exist, return 0. Example 1: Input: [6,0,8,2,1,5] Output: 4 Explanatio…
Given a binary tree, write a function to get the maximum width of the given tree. The width of a tree is the maximum width among all levels. The binary tree has the same structure as a full binary tree, but some nodes are null. The width of one level…
2020-01-23 19:39:26 问题描述: 问题求解: public int maxWidthRamp(int[] A) { Stack<Integer> stack = new Stack<>(); int res = 0; int n = A.length; for (int i = 0; i < n; i++) { if (stack.isEmpty() || A[stack.peek()] > A[i]) { stack.add(i); } } for…
［抄题］: Given a binary tree, write a function to get the maximum width of the given tree. The width of a tree is the maximum width among all levels. The binary tree has the same structure as a full binary tree, but some nodes are null. The width of one…
Given a binary tree, write a function to get the maximum width of the given tree. The width of a tree is the maximum width among all levels. The binary tree has the same structure as a full binary tree, but some nodes are null. The width of one level…
Given a binary tree, write a function to get the maximum width of the given tree. The width of a tree is the maximum width among all levels. The binary tree has the same structure as a full binary tree, but some nodes are null. The width of one level…
Given a binary tree, write a function to get the maximum width of the given tree. The width of a tree is the maximum width among all levels. The binary tree has the same structure as a full binary tree, but some nodes are null. The width of one level…
题目如下: Given a binary tree, write a function to get the maximum width of the given tree. The width of a tree is the maximum width among all levels. The binary tree has the same structure as a full binary tree, but some nodes are null. The width of one…
[LeetCode]662. Maximum Width of Binary Tree 解题报告(Python) 标签(空格分隔): LeetCode 题目地址:https://leetcode.com/problems/maximum-width-of-binary-tree/description/ 题目描述: Given a binary tree, write a function to get the maximum width of the given tree. The width…
Given a circular array C of integers represented by A, find the maximum possible sum of a non-empty subarray of C. Here, a circular array means the end of the array connects to the beginning of the array. (Formally, C[i] = A[i] when 0 <= i < A.leng…
Given a non-negative integer, you could swap two digits at most once to get the maximum valued number. Return the maximum valued number you could get. Example 1: Input: 2736 Output: 7236 Explanation: Swap the number 2 and the number 7. Example 2: Inp…
Given two integer arrays A and B, return the maximum length of an subarray that appears in both arrays. Example 1: Input: A: [1,2,3,2,1] B: [3,2,1,4,7] Output: 3 Explanation: The repeated subarray with maximum length is [3, 2, 1]. Note: 1 <= len(A),…
You are given n pairs of numbers. In every pair, the first number is always smaller than the second number. Now, we define a pair (c, d) can follow another pair (a, b) if and only if b < c. Chain of pairs can be formed in this fashion. Given a set of…
Given an array consisting of n integers, find the contiguous subarray whose length is greater than or equal to k that has the maximum average value. And you need to output the maximum average value. Example 1: Input: [1,12,-5,-6,50,3], k = 4 Output:…
Given a string array words, find the maximum value of length(word[i]) * length(word[j]) where the two words do not share common letters. You may assume that each word will contain only lower case letters. If no such two words exist, return 0. Example…
Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. Note: A leaf is a node with no children. Example: Given binary tree [3,9,20,null,null,15,7…
Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum. Example: Input: [-2,1,-3,4,-1,2,1,-5,4], Output: 6 Explanation: [4,-1,2,1] has the largest sum = 6. Time:O(N)Spac…
Given an integer array nums, find the contiguous subarray within an array (containing at least one number) which has the largest product. Example 1: Input: [2,3,-2,4] Output: 6 Explanation: [2,3] has the largest product 6. Example 2: Input: [-2,0,-1]…
public int widthOfBinaryTree(TreeNode root) { /* 层序遍历+记录完全二叉树的坐标,左孩子2*i,右孩子2*i+1 而且要有两个变量,一个记录本层节点数,一个记录下层节点数 层序遍历用队列实现 还要有一个队列记录本层的下标 */ //层序遍历记录节点 Queue<TreeNode> tree = new LinkedList<>(); //记录每个节点的位置,用来判断此节点的孩子的坐标 Queue<Integer> inde…
Problem - C - Codeforces 看清题目要求, 最重要部分在第二段. 大佬最后给出的代码果然简单, 思路简单化, 未必非要把答案在一个大括号里全部完成, 两个指针同时跑,中间加了一堆判断处理, 反而不如返璞归真, 简单清晰为后面改代码也省了很多力气 AC代码 #include <iostream> #include <algorithm> using namespace std; typedef long long LL; const int N = 2e5+10…
961. N-Repeated Element in Size 2N Array In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is repeated N times. Return the element repeated N times. Example 1: Input: [1,2,3,3] Output: 3 Example 2: Input: [2,1,…
