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, whe...
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其他好文 时间：
2014-06-09 23:14:45
阅读次数：
264
【题目】
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 following triangle
[
[2],
[3,4],
[6,5,7],
[4,1,8,3]
]
The minimum path sum from top to...
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其他好文 时间：
2014-06-08 17:52:45
阅读次数：
235
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 link...
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其他好文 时间：
2014-06-08 15:30:28
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227
题目
A message containing letters from A-Z is being encoded to numbers using
the following mapping:
'A' -> 1
'B' -> 2
...
'Z' -> 26
Given an encoded message containing digits, determine ...
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其他好文 时间：
2014-06-08 15:30:08
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182
Problem Description
Given a list of phone numbers, determine if it is consistent in the sense that no number is the prefix of another. Let’s say the phone catalogue listed these numbers:
1. Emergenc...
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其他好文 时间：
2014-06-08 10:31:22
阅读次数：
234
题目 ：Input: numbers={2, 7, 11, 15}, target=9
Output: index1=1, index2=2
解题思路：
给出一个数组合一个数，如果两个数的和等于所给的数，求出该两个数所在数组中的位置。
这个题也挺常见的，就是两个指针，从前后两个方向扫描。但是本题有以下几个需要的点：
1. 所给数组不是有序的；
2. 返回的下标是从1开始的，并且是原来无序数组中的下标；
3. 输入数组中可能含有重复的元素。
好了，把以上三点想到的话，做这个题应该不会有啥问题。
具体方法：把原...
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其他好文 时间：
2014-06-08 02:14:06
阅读次数：
250
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, whe...
分类：
其他好文 时间：
2014-06-08 02:12:04
阅读次数：
216
题目链接 Given a m x n grid filled with non-negative
numbers, find a path from top left to bottom right which minimizes the sum of
all numbers along its p...
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其他好文 时间：
2014-06-07 21:59:08
阅读次数：
344
Given amxngrid filled with non-negative
numbers, find a path from top left to bottom right whichminimizesthe sum of all
numbers along its path.Note:Yo...
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其他好文 时间：
2014-06-07 20:22:17
阅读次数：
264
By starting at the top of the triangle below and moving to adjacent numbers on the row below, the maximum total from top to bottom is 23.
3
7 4
2 4 6
8 5 9 3
That is, 3 + 7 + 4 + 9 = 23.
Find th...
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其他好文 时间：
2014-06-07 13:45:25
阅读次数：
189
