Divide two integers without using multiplication, division and mod operator.
public class Solution {
public int divide(int dividend, int divisor) {
int sign = 1;
if (dividend < 0) {
...
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其他好文 时间:
2014-05-15 14:40:50
阅读次数:
285
【题目】
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.
Input: (2 -> 4 -> 3) + (5 -> 6 -> 4)
Out...
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其他好文 时间:
2014-05-15 05:13:49
阅读次数:
306
1、
??
Populating Next Right Pointers in Each Node
Given a binary tree
struct TreeLinkNode {
TreeLinkNode *left;
TreeLinkNode *right;
TreeLinkNode *next;
}
Populate...
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其他好文 时间:
2014-05-15 04:57:36
阅读次数:
221
leetCode-002 Median of Two Sorted Arrays
【题目】
There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)).
【题意】
有两个有序的数组,找出这两数组整合后的中位数,要求时间复杂度O(nlogn)...
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其他好文 时间:
2014-05-15 04:42:05
阅读次数:
274
LeetCode-001 Two Sum
Given an array of integers, find two numbers such that they add up to a specific target number.
The function twoSum should return indices of the two numbers such that they add up to the target, where index1 must be less than index2...
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其他好文 时间:
2014-05-15 04:34:50
阅读次数:
293
Same Tree
Total Accepted: 16072 Total
Submissions: 38790My Submissions
Given two binary trees, write a function to check if they are equal or not.
Two binary trees are considered equal i...
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其他好文 时间:
2014-05-15 04:00:39
阅读次数:
319
题意:给定一组数和另一个数,在这组数中找两个数,使它们的和等于给定的数
思路1: --> 错,因为题目要求返回下标。
1.排序
2.两个下标,一个指向头,一个指向尾
3.如果下标指向的两个元素相加大于给定的数,尾下标减一
如果小于,头下标加一
思路2: hash
1.用hash存储每个数的下标
2.数组,看hash[target-num[i]]是否存在
复杂度:时间O(n), 空间O(n)...
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其他好文 时间:
2014-05-15 01:28:13
阅读次数:
297
Given two numbers represented as strings,
return multiplication of the numbers as a string.Note: The numbers can be
arbitrarily large and are non-nega...
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其他好文 时间:
2014-05-14 23:11:14
阅读次数:
398
An intent service is similar to regular
service, with two main exceptions: whatever work is to be done in
onHandleIntent() will execute on a separate ...
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移动开发 时间:
2014-05-14 22:53:39
阅读次数:
395
重定向dup和dup2函数[cpp] view
plaincopyprint?#includeintdup(intfile_descriptor);intdup2(intfile_descriptor_one,intfile_descriptor_two);dup创建一个新的文件描述符,
此描述符和...
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系统相关 时间:
2014-05-14 22:34:09
阅读次数:
479