1753

class Solution {
public:
    int maximumScore(int a, int b, int c) {
        return min((a+b+c)/2, (a+b+c)-max({a, b, c}));
    }
};

----------------

class Solution {
public:
    int maximumScore(int a, int b, int c) {
        if (a > b)
            return maximumScore(b, a, c);
        if (b > c)
            return maximumScore(a, c, b);
        return (!b && !a) ? 0 : 1 + ((b>a) ? maximumScore(a, b-1, c-1) : maximumScore(a-1, b, c-1));
    }
};