LeetCode 409. Longest Palindrome
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public class Solution { public int longestPalindrome(String s) { int[] c = new int[52]; for (int i = 0; i < s.length(); i++) { if (s.charAt(i) <= 'Z') c[s.charAt(i) - 'A']++; else c[s.charAt(i) - 'a' + 26]++; } boolean l = false; int r = 0; for (int i = 0; i < 52; i++) { if (!l && c[i] % 2 == 1) l = true; r += c[i] / 2 * 2; } return l ? r + 1 : r; }} 0 0
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