Given two words word1 and word2, find the minimum number of steps required to convert word1 to word2. (each operation is counted as 1 step.)
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其他好文 时间：
2014-07-07 23:16:52
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197
题目链接 Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two ...
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其他好文 时间：
2014-07-07 22:25:30
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359
Fortran has two kinds of subprograms: subroutine and function. Usually, subroutine is a combination of several procedures generating side effects with...
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其他好文 时间：
2014-06-30 12:43:00
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207
var indexOfSorted = function f(arr,n){
//assume : arr has been sorted
var low = 0;
var high = arr.length - 1;
var mid = (low + high) / 2;
while(high - low > 1){
if(n == arr[low]){return low...
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Web程序 时间：
2014-06-30 08:54:10
阅读次数：
978
题目链接：点击打开链接
题意：给定一棵树
找2条点不重复的路径，使得两路径的长度乘积最大
思路：
1、为了保证点不重复，在图中删去一条边，枚举这条删边
2、这样得到了2个树，在各自的树中找最长链，即树的直径，然后相乘即可
#include
#include
#include
#include
#include
#include
#include
#include
#include
#i...
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其他好文 时间：
2014-06-30 07:30:01
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235
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)).
方法
转换为寻找第k大的数。
...
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其他好文 时间：
2014-06-30 06:05:58
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261
题目
Given two words word1 and word2, find the minimum number of steps required to convert word1 to word2. (each operation is counted as 1 step.)
You have the following 3 operations permitte...
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其他好文 时间：
2014-06-30 00:46:38
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262
题目
The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other.
Given an integer n, return all distinct solutions to the n-que...
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其他好文 时间：
2014-06-30 00:34:18
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188
【问题】
Define a procedure that takes three numbers as arguments and returns the sum of the squares of the two larger numbers.
定义一个过程，它以三个数为参数，返回其中较大的两个数的平方和。
【普通版】
(define (sum-square-largest x y ...
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其他好文 时间：
2014-06-30 00:19:52
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270
题目
Given a string s1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively.
Below is one possible representation of s1 = "great":
great
/...
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其他好文 时间：
2014-06-29 23:16:19
阅读次数：
312
