ADB启动不起来的问题
时间:2022-03-10 17:20
#include<stdio.h>
#include<math.h>
#define PI 3.1415926
int main()
{
int n;
double d,c,sum;
while(scanf("%d%lf",&n,&d)>0)
{
sum=0;
while(n--)
{
scanf("%lf",&c);
sum+=sin(c/180*PI);
}
sum=sum/2*d*d;
printf("%.3lf\n",sum);
}
}
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