C语言

#include <stdio.h>
#include <math.h>

int main() {
    int a, b;
    scanf("%d %d", &a, &b);
    double hour_angle = a * 30.0 + b * 0.5;
    double minute_angle = b * 6.0;
    double angle_diff = fabs(hour_angle - minute_angle);
    double smaller_angle = (angle_diff > 180.0) ? 360.0 - angle_diff : angle_diff;
    printf("%.2lf\n", smaller_angle);
    
    return 0;
}