(easy)LeetCode 242.Valid Anagram
Given two strings s and t, write a function to determine if t is an anagram of s.
For example,
s = "anagram", t = "nagaram", return true.
s = "rat", t = "car", return false.
解法:英文颠倒词,只要两个单词中,英文字母出现的次数相等即可。
代码如下:
public class Solution {
public boolean isAnagram(String s, String t) {
int []map=new int[26];
char[] c1=s.toCharArray();
for(char t1:c1){
map[t1-'a']++;
}
char[]c2=t.toCharArray();
for(char t2:c2){
map[t2-'a']--;
}
for(int i=0;i<26;i++){
if(map[i]!=0)
return false;
}
return true;
}
}
运行结果:

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