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:...
5. Remove the Last Element using List ComprehensionAlternatively, you can use Python list comprehension to remove the last element from the list. The list comprehension [x for x in technology[:-1]] is used to create a new list named last_element that contains all the elements of the ...
Given an array and a value, remove all instances of that > value in place and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. The order of elements can be changed. It doesn't matter what you leave beyond the new ...
Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory. The order of elements can be changed. It doesn't matter what you leave beyond the new length. classSolution(object):defremoveElement(self, nums, val):""":typ...
Given input arraynums=[3,2,2,3],val=3 Your function should return length = 2, with the first two elements ofnumsbeing 2. 给定一个数组和一个数值val,将数组中数值等于val的数去除,返回新数组的长度。不能申请额外空间,超过新数组长度部分忽略。
# Quick examples of removing last element from tuple # Consider the tuple of strings mytuple = ("Python", "Spark", "Hadoop", "Pandas") # Example 1: Using positive indexing # Remove the last element from the tuple result = mytuple[:len(mytuple)-1] ...
Python3: class Solution: def removeElement(self, nums: List[int], val: int) -> int: i=0 j=len(nums)-1 while i<=j: if(nums[i]==val): nums[i]=nums[j] j-=1 else:i+=1 return j+1 总结: 这道题本身很简单,只要搞清思路,一起都会变得明了。
代码(Python3) class Solution: def removeElement(self, nums: List[int], val: int) -> int: # l 表示不等于 val 的数字个数,也是下一个可以放入数字的下标,初始化为 0 l: int = 0 # 遍历剩余所有的数字 for r in range(len(nums)): # 如果当前数字不等于 val ,则 nums[r] 不需要移除,放入...
So it will delete the elements starting from index3upto the end of the list Remove last element from a list in python using pop() We can remove any element at a specific index usingpop()function. We just have to pass the index of the element and it will remove the element from the...
Sometimes we might want to remove an element by index and sometimes by value. Sometimes we're using Python's default array and sometimes a numpy array. In all these cases, it's good to have multiple options to help us decide which of the techniques to use. # python# numpy Last Updated...