algorithm/Week_02/id_142/LeetCode_242_142.java at master · feixiangcode/algorithm · GitHub

24 lines (24 loc) · 612 Bytes

class Solution {

public boolean isAnagram(String s, String t) {

if (s == null || t == null) {

return false;

}

int[] map = new int[26];

for (int i = 0; i < s.length(); i++) {

char c = s.charAt(i);

int index = c - 'a';

map[index]++;

}

for (int i = 0; i < t.length(); i++) {

char c = t.charAt(i);

int index = c - 'a';

map[index]--;

}

for (int i : map) {

if (i != 0) {

return false;

}

return true;

}

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