1344. Angle Between Hands of a Clock

Given two numbers, hour and minutes. Return the smaller angle (in degrees) formed between the hour and the minute hand.

class Solution {
public:
    double angleClock(int hour, int minutes) {
        double h(hour == 12 ? 0 + 1 / minutes : 30 * hour + 1 / minutes), m(6 * minutes);

        return min(max(h,m) - min(h,m), 360 - (max(h,m) - min(h,m)));
    }
};