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哪位牛人帮忙看看 测试都正确 可是wa!!!!#include<stdio.h>
#include<math.h>
int main()
{
int t,i;
int m=1;
scanf("%d",&t);
for(i=0;i<t;i++)
{
float R,n,r;
scanf("%f%f",&R,&n);
if(n==1)
break;
if(n==2)
{
r=R/2.0;
printf("Scenario #%d:\n",m);
printf("%.3f\n\n",r);
}
if(n>2)
{
float pi=acos(-1.0);
float x,y;
x=cos(2.0*pi/n);
y=sqrt(2.0/(1-x));
r=R/(1.0+y);
printf("Scenario #%d:\n",m);
printf("%.3f",r);
}
if(m<t)
printf("\n\n");
m++;
}
return 0;
}
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