https://leetcode.com/problems/remove-duplicates-from-sorted-array/ 题意分析: 给定一个排好序的数组,去除重复的数,返回新数组的长度,不能申请额外的空间,超过新数组长度部分是什么数都无所谓。 题目思路: 这是一个很简单的题目,由于给定的数组已经排序,那么用i,j两个下标,i记录新数组的下标,j是原来数组下...
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 = [1,1,2], Your function should re...
Remove Duplicates from Sorted ArrayTotal Accepted:66627Total Submissions:212739My Submissions Given a sorted array, 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 in plac...
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 A = [1,1,2], Your function should retur...
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 elements of nums being 1, 1, 2, 2 and 3. It doesn't matter what you leave beyond the new length. ...
We sort the array in the first step, which takes O(NlogN) time. After that, we execute the loop from 1 to n-1, which requires O(N) time. Therefore, this method’s worst-case time complexity for eliminating duplicates from the array is O(NlogN)+O(N)=O(NlogN). Auxiliary Space ...
这个题是Remove Duplicates from Sorted Array的延续。也是插空法的经典题目,甚至可以扩展到Remove Duplicates from Sorted Array N。前两个元素不需要改变,就当已经插入到数组中了。从第三个元素开始,只要遍历的元素和前面两个的元素相同,就跳过。否则,就进行插入。
If you like to have a function where you can send your lists, and get them back without duplicates, you can create a function and insert the code from the example above. Example defmy_function(x): returnlist(dict.fromkeys(x)) mylist =my_function(["a","b","a","c","c"]) ...
26.remove-duplicates-from-sorted-array.md Breadcrumbs leetcode /problems / 题目地址(26. 删除排序数组中的重复项) https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array/description/ 题目描述 给定一个排序数组,你需要在 原地 删除重复出现的元素,使得每个元素只出现一次,返回移除后数组的新...
Python's dict class has a fromkeys class method which accepts an iterable and makes a new dictionary where the keys are the items from the given iterable.Since dictionaries can't have duplicate keys, this also de-duplicates the given items! Dictionaries also maintain the order of their items ...