class Solution { public int removeElement(int[] nums, int val) { int i=0,j=nums.length-1;//i-左指针;j-右指针 while (i<=j){ if(nums[i]==val){ nums[i]=nums[j];//得到索引j的值,无需把索引j的值改为索引i的值 j--; }else i++; } return j+1; } } Python3: 代码语言:...
classSolution(object):defremoveElement(self, nums, val):""":type nums: List[int] :type val: int :rtype: int"""whilevalinnums: nums.remove(val)returnlen(nums)
The order of elements can be changed. It doesn't matter what you leave beyond the new length. 代码: oj测试通过 Runtime: 43 ms 1classSolution:2#@param A a list of integers3#@param elem an integer, value need to be removed4#@return an integer5defremoveElement(self, A, elem):6length...
Thepop()method is another way to remove an element from a list in Python. By default,pop()removes and returns the last element from the list. However, we can also specify the index of the element to be removed. So, here we will use the index number of the first element to remove i...
reversed()和sorted()同样表示对列表/元组进行倒转和排序,reversed()返回一个倒转后的迭代器(上文例子使用list()函数再将其转换为列表);sorted()返回排好序的新列表。 列表和元组存储方式的差异 前面说了,列表和元组最重要的区别就是,列表是动态的、可变的,而元组是静态的、不可变的。这样的差异,势必会影响两者...
('rank').text) 46 if rank > 50: 47 root.remove(country) 48 49 tree.write('output.xml') 50 51 #自己创建xml文档 52 53 import xml.etree.ElementTree as ET 54 55 new_xml = ET.Element("namelist")#创建了一个根节点 56 #相当于创建了<namelist></namelist> 57 name = ET.SubElement(new...
语法:list.append(element)用于在列表的末尾添加一个新元素,只能添加一个元素。该元素可以是任意数据类型,比如整数、字符串、列表、元组、字典等。# 定义一个存储水果名称的列表 fruits = ['apple', 'banana'] # 使用append 方法添加一个字符串 'cherry' 到列表末尾 fruits.append('cherry') print(fruits) #...
from tokenizers.pre_tokenizers import WhitespaceSplit, BertPreTokenizer# Text to normalizetext = ("this sentence's content includes: characters, spaces, and "\"punctuation.")#Definehelper function to display pre-tokenized outputdef print_pretokenized_str(pre_tokens):forpre_token in pre_tokens:pri...
("已到最后一级,无法处理") class ElementHandler(Handler): def __init__(self, successor): self.func = None self.successor = successor def add_event(self, func): self.func = func def handle(self): if self.func: return self.func() else: return self.successor.handle() # 客户端 # ...
You can reduce the overhead further by moving theforloop into the native Python code. This approach involves using theiterator protocol(or the PyBind11py::iterabletype forthe function parameter) to process each element. Removing the repeated transitions between Python and C++ is an effective way ...