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public class Solution {
    public int distributeCandies(int[] candies) {
        
       Set<Integer> sis = new HashSet<>();
        
       for(int candy : candies){
           sis.add(candy);
       }
        
      int halfCandies = candies.length /2;
        
      return sis.size() >= halfCandies ? halfCandies : sis.size() ;
    
 }
}