fromkeys(original_items)) That will de-duplicate your items while keeping them in the order that each item was first seen.If you'd like practice de-duplicating list items, try out the uniques_only Python Morsels exercise. The bonuses include some twists that weren't discussed above. 😉...
collections.OrderedDict:利用其键的唯一性及插入顺序保留特性。适用于Python 2.7+版本。 from collections import OrderedDict unique_list = list(OrderedDict.fromkeys(original_list)) 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 ...
mylist = list(dict.fromkeys(mylist)) print(mylist) Create a dictionary, using the List items as keys. This will automatically remove any duplicates because dictionaries cannot have duplicate keys. Create a Dictionary mylist = ["a","b","a","c","c"] ...
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the original list. For example, Given1->2->3->3->4->4->5, return1->2->5. Given1->1->1->2->3, return2->3. 代码:oj在线测试通过 288 ms 1#Definition for singly-linked lis...
Python Code: # Define a list 'a' with some duplicate and unique elementsa=[10,20,30,20,10,50,60,40,80,50,40]# Create an empty set to store duplicate items and an empty list for unique itemsdup_items=set()uniq_items=[]# Iterate through each element 'x' in the list 'a'forxina...
Since the keys in a dictionary are unique, the duplicate values are dropped when creating the dictionary. The keys are guaranteed to have the same order as the items in the list if using Python 3.7 or later. All keys have a value ofNoneby default. However, the values aren't required si...
代码(Python3) class Solution: def removeDuplicateLetters(self, s: str) -> str: # last_index[ch] 表示 ch 在 s 中的最后一个出现的位置 last_index: Dict[str, int] = { # 带下标遍历 s 中的字符,更新每个字符最后一次出现的位置 ch: i for i, ch in enumerate(s) } # is_in_stack[ch...
In Python, how can I efficiently remove duplicates from a list while maintaining the original order of elements? I have a list of integers, and I want to remove duplicat
Write a function,remove_duplicatesthat takes a list as its argument and returns a new list containing the unique elements of the original list. The elements in the new list without duplicates can be in any order. Suggested test cases: Try an input list with no duplicate elements. The output...
Python List Exercises, Practice and Solution: Write a Python program to remove duplicate words from a given list of strings.