原题链接: http://oj.leetcode.com/problems/partition-list/  这是一道链表操作的题目,要求把小于x的元素按顺序放到链表前面.我们仍然是使用链表最经常使用的双指针大法,一个指向当前小于x的最后一个元素,一个进行往前扫描.假设元素大于x,那么继续前进,否则,要把元素移到前面,并更新第一个指针.这里有一个小细节,就是假设不须要移动(也就是已经是接在小于x的最后元素的后面了),那么仅仅须要继续前进就可以.算法时间复杂度是O(n),空间仅仅须要几个辅助变量,…

Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve the original relative order of the nodes in each of the two partitions. For example,Given 1->4->3->2…

题目: Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve the original relative order of the nodes in each of the two partitions. For example, Given 1->4->3-…

Question 561. Array Partition I Solution 题目大意是,给的数组大小是2n,把数组分成n组,每组2个元素,每个组取最小值,这样就能得到n个值,怎样分组才能使这n个数相加最小. 思路:有点田忌赛马的意思,肯定最大和第二大一组,取最小值即第二大的数,依次类推...这样就需要排序,隔一个取一个. Java实现: public int arrayPairSum(int[] nums) { Arrays.sort(nums); int total = 0; for (…

最近在准备找工作的算法题,刷刷LeetCode,以下是我的解题报告索引,每一题几乎都有详细的说明,供各位码农参考.根据我自己做的进度持续更新中......                              本文地址 LeetCode:Reverse Words in a String LeetCode:Evaluate Reverse Polish Notation LeetCode:Max Points on a Line LeetCode:Sort List LeetCode:Ins…

Here is my collection of solutions to leetcode problems. Related code can be found in this repo: https://github.com/zhuli19901106/leetcode LeetCode - Course Schedule LeetCode - Reverse Linked List LeetCode - Isomorphic Strings LeetCode - Count Primes…

Given a non-empty array containing only positive integers, find if the array can be partitioned into two subsets such that the sum of elements in both subsets is equal. Note: Both the array size and each of the array element will not exceed 100. Exam…

Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve the original relative order of the nodes in each of the two partitions. For example,Given 1->4->3->2…

题目来源 https://leetcode.com/problems/partition-list/ Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve the original relative order of the nodes in each of t…

LeetCode: Palindrome Partition Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. For example, given s = "aab", Return [ ["aa","b"], [&q…