时钟夹角.cpp

求任意时刻时钟的夹角

#include <stdio.h>
#include <math.h>
void main()
{
	int h,m;
	float a;
	while(1)
	{
		scanf("%d %d",&h,&m);
		if(h==0&&m==0)
			break;
		else
		{
            a=(float)m/60*360-((float)m/60*30+h*30);
		    m<10?printf("At %d:0%d the angle is ",h,m):printf("At %d:%d the angle is ",h,m);
			a>180?printf("%.1f degrees.\n",360-a):a>0?printf("%.1f degrees.\n",a):a>-180?printf("%.1f degrees.\n",-a):printf("%.1f degrees.\n",360+a);
		}
	}
}