26 lines
584 B
C#
26 lines
584 B
C#
namespace _409._Longest_Palindrome;
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public class Solution
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{
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public int LongestPalindrome(string s)
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{
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Dictionary<char, int> dict = new Dictionary<char, int>();
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foreach(var ch in s)
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{
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if(dict.ContainsKey(ch))
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dict[ch]++;
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else
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dict.Add(ch, 1);
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}
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int sum = 0;
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bool hasOdd = false;
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foreach(var v in dict.Values)
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{
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sum += v / 2;
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if(v % 2 == 1)
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hasOdd = true;
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}
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return sum*2 + (hasOdd ? 1 : 0);
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}
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}
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