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Edit Distance

时间:2016-01-04 19:43:55      阅读:124      评论:0      收藏:0      [点我收藏+]

 

From: https://leetcode.com/problems/edit-distance/

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 permitted on a word:

a) Insert a character
b) Delete a character
c) Replace a character

 

分析:

该题目与 Distinct Subsequences 的思路基本是一致的,都是二维 DP 求解。DP 问题需要专门再深入学习理解。

比较简单的思路是 Brute Force,类似 Backtracking。但是复杂度会是 O(n3).

 

Reference:

Code Ganker Solution: http://blog.csdn.net/linhuanmars/article/details/24213795

 

Edit Distance

原文:http://www.cnblogs.com/Phoenix-Fearless/p/5099985.html

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