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usingSystem;usingSystem.Collections.Generic;usingSystem.IO;usingSystem.Linq;classSolution{staticvoidMain(String[]args){stringa=Console.ReadLine();stringb=Console.ReadLine();// elements automatically initialized to 0int[]letterCounts=newint[26];foreach(charcina){letterCounts[c-'a']++;}foreach(charcinb){letterCounts[c-'a']--;}Console.WriteLine(letterCounts.Sum(x=>Math.Abs(x)));}}
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Strings: Making Anagrams
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It can be much simpler: