【leetcode】Isomorphic Strings【java】
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题目:
Given two strings s and t, determine if they are isomorphic.
Two strings are isomorphic if the characters in s can be replaced to get t.
All occurrences of a character must be replaced with another character while preserving the order of characters. No two characters may map to the same character but a character may map to itself.
For example,
Given "egg"
, "add"
, return true.
Given "foo"
, "bar"
, return false.
Given "paper"
, "title"
, return true.
s字符串中的字符一旦与t字符串中的字符匹配后就不能再与其他的字符匹配,通过建立一个哈希表来存储s字符串中字符与t中字符串之间的关系来判断是否满足题目要求
代码:
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