odd string diff

 https://leetcode.com/problems/odd-string-difference/

Beats 19.92%of users with Java

 

class Solution {

public String oddString(String[] words) {

HashMap<String, String> res = new HashMap();

for (String s : words) {

int[] diff2 = new int[words[0].length() - 1];

extracted(s.toCharArray(), diff2);

res.put(Arrays.toString(diff2), res.getOrDefault(Arrays.toString(diff2),"")+ s);

}

return res.values().stream()

.min(Comparator.comparingInt(String::length))

.get();

}

private void extracted(char[] charArray, int[] diff) {

for (int i = 0; i < charArray.length - 1; i++) {

diff[i] = charArray[i + 1] - charArray[i];

}

}

}