【LeetCode】18.Array and String — Remove Duplicates from Sorted Array 从已排序的数组中删除重复项 Given a sorted arraynums, remove the duplicates in-place such that each element appear onlyonceand return the new length. Do not allocate extra space for another array, you must do this by modi...
Given1->1->1->2->3, return2->3. 没什么太多讲的,能够使用递归和迭代两种方法来做,要细致考虑各种输入情况。code例如以下: class Solution { public: ListNode *deleteDuplicates(ListNode *head) { if(head == NULL) return NULL; ListNode *first = head,*second = NULL,*result = NULL; bool isDup...
Can you solve this real interview question? Remove Duplicates from Sorted Array - Given an integer array nums sorted in non-decreasing order, remove the duplicates in-place [https://en.wikipedia.org/wiki/In-place_algorithm] such that each unique element
Leetcode:remove_duplicates_from_sorted_list 一、 题目 给定一个排好序的链表,删除全部反复的节点,使每个节点都仅仅出现一次 比如: Given 1->1->2, return 1->2. Given 1->1->2->3->3, return1->2->3. 二、 分析 刚看到题目时。没有看到sorted这个关键词。还以为要使用数组或空间保存经过的节点,...
原题链接在这里:https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string/ 题目: Given a stringSof lowercase letters, aduplicate removalconsists of choosing two adjacent and equal letters, and removing them. We repeatedly make duplicate removals on S until we no longer can. ...
Type:mediun Given a sorted arraynums, remove the duplicatesin-placesuch that duplicates appeared at mosttwiceand return the new length. Do not allocate extra space for another array, you must do this bymodifying the input arrayin-placewith O(1) extra memory. ...
Do not allocate extra space for another array, you must do this bymodifying the input arrayin-placewith O(1) extra memory. 增加一个count来计数,从左至右遍历,遇到相同的直接del,否则count += 1 classSolution:defremoveDuplicates(self,nums):""" ...
2019-12-22 08:20 − 原题链接在这里:https://leetcode.com/problems/remove-outermost-parentheses/ 题目: A valid parentheses string is either empty (""), "(" + A + ")", or&n... Dylan_Java_NYC 0 432 LeetCode 82. Remove Duplicates from Sorted List II 2019-11-13 11:06 −...
- LeetCodeleetcode.com/problems/remove-duplicates-from-sorted-array/description/ 解题思路 双指针 class Solution { public: int removeDuplicates(vector<int>& nums) { if(nums.size() == 0) return 0; int i = 0, j = 1; while(j < nums.size()) { if(nums[i] != nums[j]) { i+...
LeetCode第80题的时间复杂度是多少? 在LeetCode第80题中,如何处理重复元素? 【原题】 Follow up for “Remove Duplicates”: What if duplicates are allowed at most twice? For example, Given sorted array nums = [1,1,1,2,2,3], Your function should return length = 5, with the first five ele...