思路一:使用三个变量,a b c维护大小关系, 最后输出. 注意边界条件的处理. 思路二:c++ 可以使用set,用到了set 的erase 以及set的 begin, rbegin, java中set处理没有c++灵活. 这要得益于c++的迭代器 *442. Find All Duplicates in an Array 思路一:使用数组下标标记,所以现在把数组下标,当成数组中的元素,如...
Given an array, rotate the array to the right byksteps, wherekis non-negative. Example 1: Input: [1,2,3,4,5,6,7] and k = 3Output: [5,6,7,1,2,3,4] Explanation: rotate 1 steps to the right: [7,1,2,3,4,5,6] rotate 2 steps to the right: [6,7,1,2,3,4,5] rota...
AI代码解释 defthreeSum(nums):result=[]nums.sort()a=len(nums)foriinrange(a-1):forjinrange(i+1,a):if-(nums[i]+nums[j])innums[j+1:]:array=[nums[i],nums[j],-(nums[i]+nums[j])]ifarray notinresult:result.append(array)returnresult nums=[-1,0,1,2,-1,-4]print(threeSum([...
https://leetcode.com/problems/peak-index-in-a-mountain-array/ https://leetcode.com/problems/search-in-rotated-sorted-array/ https://leetcode.com/problems/search-a-2d-matrix/ https://leetcode.com/problems/search-in-rotated-sorted-array-ii/ https://leetcode.com/problems/find-minimum-in-r...
Sum of Mutated Array Closest to Target Leetcode 1060. Missing Element in Sorted Array 双指针(2 Pointer): 基础知识:常见双指针算法分为三类,同向(即两个指针都相同一个方向移动),背向(两个指针从相同或者相邻的位置出发,背向移动直到其中一根指针到达边界为止),相向(两个指针从两边出发一起向中间移动直到...
题目:Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero. Note: The solution set must not contain duplicate triplets. For example, given array S = [-1, 0, 1, 2, -...
本文主要解析《Find All Numbers Disappeared in an Array》,顺便简单解释一下《Find All Duplicates in an Array》。 该题的含义是:给定一个长度为n的数组,数组元素是1~n。但是有些元素出现一次,有些元素出现两次,从而也会导致有些元素不出现。现在让我们找到哪些元素没有出现。另外一个题目是让我们找到出现两次...
Do not return anything, modify nums in-place instead. """ 1. 2. 3. 4. 5. 首先先复习一下对于Py中循环的三种写法: list = ['python','c++','java','c','go'] # 方法一:直接遍历列表 for i in list: print(i) print(list.index(i)) ...
215Kth Largest Element in an ArrayC 214Shortest Palindrome 213House Robber IIC 212Word Search IIC 211Add and Search Word - Data structure designC 210Course Schedule II 209Minimum Size Subarray SumC 208Implement Trie (Prefix Tree)C 207Course Schedule ...
025_reverse_nodes_in_k_group Use -O1 option for makefile Jun 28, 2020 026_remove_duplicates_from_sorted_array Use -O1 option for makefile Jun 28, 2020 027_remove_element Use -O1 option for makefile Jun 28, 2020 028_implement_strstr Use -O1 option for makefile Jun 28, 2020 029_divi...