列表解析配合集合:通过遍历原列表并记录已出现元素,兼容所有Python版本。 seen = set() unique_list = [x for x in original_list if not (x in seen or seen.add(x))] 3. 第三方库方法 对于已安装pandas或numpy的场景,可直接调用封装好的方法: Pandas的drop_duplicates:适...
To remove duplicates from a Python list while preserving order, create a dictionary from the list and then extract its keys as a new list: list(dict.fromkeys(my_list)).
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 ...
Write a Python program to remove duplicates from a list while maintaining the order. Write a Python program to find all unique elements from a list that appear only once. Write a Python program to remove consecutive duplicate elements from a list. Write a Python program to remove duplicate sub...
力扣—Remove Duplicates from Sorted List(删除排序链表中的重复元素)python实现 题目描述: 中文: 给定一个排序链表,删除所有重复的元素,使得每个元素只出现一次。 示例1: 输入: 1->1->2 输出: 1->2 示例2: 输入: 1->1->2->3->3 输出: 1->2->3...
Given a sorted linked list, delete all duplicates such that each element appear onlyonce. For example, Given1->1->2, return1->2. Given1->1->2->3->3, return1->2->3. 代码: 1#Definition for singly-linked list.2#class ListNode:3#def __init__(self, x):4#self.val = x5#self...
ExampleGet your own Python Server Remove any duplicates from a List: mylist = ["a","b","a","c","c"] mylist = list(dict.fromkeys(mylist)) print(mylist) Try it Yourself » Example Explained First we have a List that contains duplicates: ...
Write a Python program to remove duplicates from a list. Sample Solution : Python Code : view plaincopy to clipboardprint? a = [10,20,30,20,10,50,60,40,80,50,40] dup_items = set() uniq_items = [] forxina: ifxnotindup_items: ...
Remove Duplicates系列笔记 第一题 Python代码: # Definition for singly-linked list. classListNode(object): def__init__(self,x): self.val=x self.next=None classSolution(object): defdeleteDuplicates(self,head): """ :type head: ListNode
# duplicates.pydef test_dict(): return list(dict.fromkeys(DUPLICATES)) Here is what the above code does: It creates a dictionary using fromkeys() method. Each element from DUPLICATES is a key with a value of None. Dictionaries in Python 3.6 and above are ordered, so the keys are created...