575. Distribute Candies

没啥意思，简单题

class Solution {public:    int distributeCandies(vector<int>& candies) {        set<int> count;        for(int i=0;i<candies.size();i++)            count.insert(candies[i]);        if(candies.size()/2>count.size())            return count.size();        else            return candies.size()/2;    }};