https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/discuss/27976/3-6-easy-lines-C%2B%2B-Java-Python-Ruby 描述 Follow up for "Remove Duplicates":What if duplicates are allowed at most twice? For example,Given sorted array A = [1,1…

Given a sorted linked list, delete all duplicates such that each element appear only once. Example 1: Input: 1->1->2 Output: 1->2 Example 2: Input: 1->1->2->3->3 Output: 1->2->3 这道题让我们移除给定有序链表的重复项,那么可以遍历这个链表,每个结点和其后面的结点比较,如果结点值相…

Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example,Given input array nums …

题目 Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memo…

https://leetcode.com/problems/remove-duplicates-from-sorted-array/ 双指针,注意初始时左右指针指向首元素! class Solution { public: int removeDuplicates(vector<int>& nums) { ; int i = nums.size(); ) ; ],*r = &nums[]; ]) { while(*l == *r) { r++; } l++; *l = *r;…

LeetCode 26 Remove Duplicates from Sorted Array [Array/std::distance/std::unique] <c++> 给出排序好的一维数组,删除其中重复元素,返回删除后数组长度,要求不另开内存空间. C++ 很简单的题目,但是第一发RE了,找了很久问题出在哪.最后单步调试发现vector.size()返回值是unsigned型的.unsigned型和int型数据运算结果还是unsigned型的.这就导致当数组为空时,nums.size(…

1. 原始题目 给定一个排序数组,你需要在原地删除重复出现的元素,使得每个元素最多出现两次,返回移除后数组的新长度. 不要使用额外的数组空间,你必须在原地修改输入数组并在使用 O(1) 额外空间的条件下完成. 示例 1: 给定 nums = [1,1,1,2,2,3], 函数应返回新长度 length = 5, 并且原数组的前五个元素被修改为 1, 1, 2, 2, 3 . 你不需要考虑数组中超出新长度后面的元素. 示例 2: 给定 nums = [0,0,1,1,1,1,2,3,3], 函数应…

题目链接: https://leetcode.com/problems/remove-duplicates-from-sorted-array/?tab=Description   从有序数组中移除重复数字,并且返回不重复数字的个数   遍历操作: 可以使用新的for循环 for (int n : nums){}   每次进行对比,并且更新第一个遇到不相等的元素的下标为i 对数组进行重新赋值操作   当数组长度大于1时,ans初值为1,当数组长度为0时,返回0   参考代码 :   packag…

Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory.…

[LeetCode] Remove Duplicates from Sorted Array 有序数组中去除重复项 描述 Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this…