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【LeetCode】Jump Game II
Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array represents your maximu...
分类:其他好文   时间:2014-05-19 08:07:26    阅读次数:288
[leetcode]_Merge Two Sorted Lists
题目:合并两个有序单链表思路:一开始想复杂了,以为必须在原链表上修改(绕来绕去还AC了,但是思路相当绕),其实没有,按照正常地合并两个数组同样的方法也对。代码:public ListNode mergeTwoLists(ListNode l1, ListNode l2) { if(l1 ...
分类:其他好文   时间:2014-05-19 07:48:32    阅读次数:314
Leetcode | Validate Binary Search Tree
Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtree of a node contains only n...
分类:其他好文   时间:2014-05-19 07:23:48    阅读次数:357
【leetcode】Best Time to Buy and Sell Stock
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie...
分类:其他好文   时间:2014-05-18 20:30:16    阅读次数:301
[leetcode]_Search Insert Position
题目:查找元素target插入一个数组中的位置。代码:public int searchInsert(int[] A, int target) { int len = A.length; int i; for(i = 0 ; i < len ; i++){ ...
分类:其他好文   时间:2014-05-18 20:28:13    阅读次数:299
【leetcode】Longest Palindromic Substring
Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest pa...
分类:其他好文   时间:2014-05-18 19:39:55    阅读次数:355
Leetcode | 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 o...
分类:其他好文   时间:2014-05-18 02:34:57    阅读次数:352
【LeetCode】Triangle
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol...
分类:其他好文   时间:2014-05-18 02:11:19    阅读次数:302
Leetcode | Reverse Nodes in k-Group
Given a linked list, reverse the nodes of a linked list k at a time and return its modified list.If the number of nodes is not a multiple of k then le...
分类:其他好文   时间:2014-05-18 01:53:53    阅读次数:331
HDU 1452 Happy 2004(因子和的积性函数)
题目链接题意 : 给你一个X,让你求出2004的X次方的所有因子之和,然后对29取余。思路 : 原来这就是积性函数,点这里这里这里,这里讲得很详细。在非数论的领域,积性函数指所有对于任何a,b都有性质f(ab)=f(a)f(b)的函数。 在数论中的积性函数:对于正整数n的一个算术函数f(n),若f....
分类:移动开发   时间:2014-05-17 21:03:04    阅读次数:407
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