1. I want to duplicate this list of numbers. In Python, I can use the slicing method to achieve it. It's as simple as list1 = [1, 2, 3]; list2 = list1[:]. It's like making a copy of a drawing. 我想要复制这个数字列表。在Python中,我可以使用切片方法来实现。就像list1 = [...
=len(set(nums)) 3 Python 解法二:哈希表 ## LeetCode 217EfromtypingimportListclassSolution:defcontainsDuplicate(self,nums:List[int])->bool:hash={}forninnums:ifnnotinhash:## 新元素hash[n]=1## value 计数 +1else:## 存在重复了returnTruereturnFalse## 否则返回 false,表示不存在重复 由于利用了...
else: for i in range(len(nums)-1) : if nums[i] == nums[i+1]: return True return False 3.楼下有大神回复了,看到一种比较简答的优秀解法:对数据去重,如果长度变化,说明存在重复元素。 class Solution: def containsDuplicate(self, nums): """ :type nums: List[int] :rtype: bool """ retu...
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] 表示 ch 是否在栈中 is_in_stack: Set[str] = set() # 用栈 stack 收集当前的结果 stack: List[
input elements into list then pop out duplicate elements into another list without using count function. in Python. (i used nested for loop but for big list it's not working ) pythonpython3 21st Aug 2018, 6:35 PM Rishabh Mehta
假设存在不包含key的环,起点0在不包含key的环中绕圈。 代码如下 classSolution:deffindDuplicate(self, nums:List[int]) ->int:# 如果只有两个元素,第一个元素一定是重复元素iflen(nums) ==2:returnnums[0]# fast每次走两步,slow每次走一步,起始点可以为任意位置fast =0slow =0# python没有do while,所以...
python3 21st Oct 2018, 9:04 AM Goodboy08 + 3 If you mean from a list, just transform it into a set: k=[1, 1,1,1,15] s=set(k) 21st Oct 2018, 9:07 AM fra + 2 If the duplicates are in a list, and you want to remove duplicates while keeping the order of the numbers,...
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....
:rtype: bool"""nums.sort()foriinrange(len(nums)-1):ifnums[i] == nums[i+1]:returnTruereturnFalse 时间复杂度:O(nlog(n)) 空间复杂度:O(1) 思路2: 统计每个数的个数 classSolution(object):defcontainsDuplicate(self, nums):""":type nums: List[int] ...
Hello, I am stuck in my project and don't know what to do about it. I have thought of several ways but nothing has worked... so can anyone help me as toHow i should remove duplicate values from a listbox on a buttonclick on a form ?