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_161_OneEditDistance.java
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_161_OneEditDistance.java
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package leetcode_1To300;
/**
* 本代码来自 Cspiration,由 @Cspiration 提供
* 题目来源:http://leetcode.com
* - Cspiration 致力于在 CS 领域内帮助中国人找到工作,让更多海外国人受益
* - 现有课程:Leetcode Java 版本视频讲解(1-900题)(上)(中)(下)三部
* - 算法基础知识(上)(下)两部;题型技巧讲解(上)(下)两部
* - 节省刷题时间,效率提高2-3倍,初学者轻松一天10题,入门者轻松一天20题
* - 讲师:Edward Shi
* - 官方网站:https://cspiration.com
* - 版权所有,转发请注明出处
*/
public class _161_OneEditDistance {
/**
* 161. One Edit Distance
* Given two strings S and T, determine if they are both one edit distance apart.
1, abcre abere
2, abdc abc
3, abc abdc
abc
abcd
time : O(n^2)
space : O(1)
* @param s
* @param t
* @return
*/
public static boolean isOneEditDistance(String s, String t) {
for (int i = 0; i < Math.min(s.length(), t.length()); i++) {
if (s.charAt(i) != t.charAt(i)) {
if (s.length() == t.length()) {
return s.substring(i + 1).equals(t.substring(i + 1));
} else if (s.length() > t.length()) {
return s.substring(i + 1).equals(t.substring(i));
} else {
return t.substring(i + 1).equals(s.substring(i));
}
}
}
return Math.abs(s.length() - t.length()) == 1;
}
}