下面是一个使用mermaid语法表示的序列图,展示了去除None值的过程: List DataPython ScriptList DataPython Scriptloop[through list]创建包含None值的列表检查是否存在None值返回True调用remove方法去除None值输出去除None值后的列表 通过上面的序列图,我们可以清晰地看到去除None值的整个过程,包括列表的创建、遍历和去除None...
next return list ## 递归的解法 class Solution: def removeNthFromEnd(self, head, n): def remove(head): if not head: return 0, head i, head.next = remove(head.next) return i+1, (head, head.next)[i+1 == n] return remove(head)[1] 时间复杂度 这个算法的时间复杂度是 O(L),...
通过指定分隔符sep对字符串进行分割,并返回分割后的字符串列表,类似于split()函数,只不过 rsplit()函数是从字符串右边(末尾)开始分割。 语法:str.rsplit(sep=None, maxsplit=-1) -> list of strings 返回 字符串列表 或str.rsplit(sep=None, maxsplit=-1)[n] 参数: sep —— 分隔符,默认为空格,但不...
Given an integer n, generate the nth sequence. Note: The sequence of integers will be represented as a string. ===Comments by Dabay=== 题意半天没搞懂。原来是给的数字n是几,就返回第几个字符串。例如,如果n是5,就返回“111221”这个字符串。 第一个铁定是1,然后用say的方式来往后生成下一个字...
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.next = None67classSolution:8#@param head, a ListNode9#@return a ListNode10defdeleteDuplicates(self, head):11ifheadisNoneorhead.nextis...
Remove duplicates from a list in Python Trey Hunner 3 min. read • Python 3.9—3.13 • March 8, 2023 Share Tags Data Structures Need to de-duplicate a list of items?>>> all_colors = ["blue", "purple", "green", "red", "green", "pink", "blue"] ...
/usr/bin/python# encoding: utf-8# -*- coding: utf8 -*-importrefromcopyimportdeepcopy old_list=['# ','# conf','NAME="Ubuntu"','VERSION="14.04.3 LTS, Trusty Tahr"']new_list=deepcopy(old_list)formemberinnew_list:ifre.search('^#+.*',member)isnotNone:old_list.remove(member)...
/usr/bin/python# encoding:utf-8#-*-coding:utf8-*-importre from copyimportdeepcopy old_list=['# ','# conf','NAME="Ubuntu"','VERSION="14.04.3 LTS, Trusty Tahr"']new_list=deepcopy(old_list)formemberinnew_list:ifre.search('^#+.*',member)is not None:old_list.remove(member)print...
importsyssys.version#'3.8.8 (default, Apr 13 2021, 12:59:45) \n[Clang 10.0.0 ]'fromtypingimportListclassSolution:defremoveElement(self,nums:List[int],val:int)->int:ifnumsisNoneorlen(nums)==0:##如果nums为空列表return0l,r=0,len(nums)-1whilel<r:while(l<randnums[l]!=val):##如...
问在HuggingFace Trainer类中设置`remove_unused_columns=False`导致错误EN不得不说，这个Huggingface很贴心...