Added day14 solution

Author: avidLearnerInProgress

30-days-of-code-july/14.minAngleBetweenHourMinutes.cpp

@@ -0,0 +1,27 @@
+class Solution {
+public:
+    double angleClock(int hour, int minutes) {
+        if(hour < 0 or minutes < 0 or hour > 12 or minutes > 60) return 0.0;
+        
+        if(hour == 12) hour = 0;
+        if(minutes == 60) {
+            minutes = 0;
+            hour += 1;
+            if(hour > 12) hour -= 12;
+        }
+        
+        /*
+        Minute hand moves => 6 degree per minute
+        Hour hand moves => 0.5 degree per minute
+        
+        In h hour and m minutes;
+        Hour hand moves => (hour * 60 + minutes) * 0.5
+        Minute hand moves => (hour * 60 + minutes) * 6
+        */
+        auto hour_angle = 0.5 * (hour * 60 + minutes);
+        auto minute_angle = 6 * minutes;
+        auto angle = abs(hour_angle - minute_angle);
+        
+        return min(360 - angle, angle);
+    }
+};