1072 – Calm Down

Problem Link

<Source Code>

#include<stdio.h>
#define pi acos(-1)
int main()
{
int t,i;
double R,r,n,angle;
scanf(“%d”,&t);
for(i=0;i<t;i++)
{scanf(“%lf %lf”,&R,&n);
angle=(pi)/(n);

r=R*(sin(angle))/(sin(angle)+1);
printf(“Case %d: %.10lf\n”,i+1,r);

}
return 0;
}

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About waprogramming

I am in CSE,from CUET
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