链接:https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string python # 1047.删除所有相邻的重复字符 class Solution: def removeDuplicates(self,s: str) -> str: """ 借助辅助栈,同则出栈,否则入栈,最后拼接字符返回,时间O(n), 空间最坏O(n) """ stack = [] foriinrange(len(...
这道题是之前那道Remove All Adjacent Duplicates In String的拓展,那道题只是让移除相邻的相同字母,而这道题让移除连续k个相同的字母,规则都一样,移除后的空位不保留,断开的位置重新连接,则有可能继续生成可以移除的连续字母。最直接暴力的解法就是多次扫描,每次都移除连续k个字母,然后剩下的字母组成新的字符串,...
if len(stack)>0 and letter == stack[-1]: duplicate += 1 if duplicate == k-1: for _ in range(k-1): stack.pop() duplicate = 0 for i in range(len(stack)-1,0,-1): if stack[i] == stack[i-1]: duplicate += 1 else: break else: stack.append(letter) else: stack.append(...
Python Code: # Define a function 'unique_list' that removes duplicates from a listdefunique_list(l):# Create an empty list 'temp' to store unique elementstemp=[]# Iterate through the elements of the input list 'l'forxinl:# Check if the element 'x' is not in the 'temp' list (i....
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 ...
Python Code:# Import itertools import itertools # Function to remove consecutive duplicates def remove_consecutive_duplicates(s1): # Group into consecutive characters # Keep only first instance of each return ''.join(i for i, _ in itertools.groupby(s1)) # Test string s1= "aabcdaee" # Print...
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"]) ...
如何用Python编写一个函数来移除列表中的重复元素? Python中的remove_duplicates函数应该如何实现? 编写Python函数remove_duplicates时需要注意哪些性能问题? 文章(0) 问答(9999+) 视频(3) 沙龙(0) 视频 视频合辑 共2个视频 YouTube采集软件 马哥python说
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
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)).