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题目描述

给定两个字符串 s1s2,请编写一个程序,确定其中一个字符串的字符重新排列后,能否变成另一个字符串。

示例 1:

输入: s1 = "abc", s2 = "bca"
输出: true 

示例 2:

输入: s1 = "abc", s2 = "bad"
输出: false

说明:

  • 0 <= len(s1) <= 100
  • 0 <= len(s2) <= 100

解法

Python3

class Solution:
    def CheckPermutation(self, s1: str, s2: str) -> bool:
        return sorted(s1) == sorted(s2)

Java

class Solution {
    public boolean checkPermutation(String s1, String s2) {
        if (s1 == null || s2 == null || s1.length() != s2.length()) {
            return false;
        }
        char[] c1 = s1.toCharArray();
        char[] c2 = s2.toCharArray();
        Arrays.sort(c1);
        Arrays.sort(c2);
        return Arrays.equals(c1, c2);
    }
}

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