Uva 375 - Inscribed Circles and Isosceles Triangles
2013-03-30 16:22
435 查看
计算几何
看懂题目很重要
我的前两种理解都是错的
只有高线上有不断的圆
并且注意R不能小于eps
所以直接h*PI会大那么一点,,,,
模拟就好了
变化h就可以循环了
最近有点爱用do_while了...
今天用了两次...之前基本没用过=.=
%13lf的写法学习了,是在discuss里面看到的
1WA格式(回车)
1Y
看懂题目很重要
我的前两种理解都是错的
只有高线上有不断的圆
并且注意R不能小于eps
所以直接h*PI会大那么一点,,,,
模拟就好了
变化h就可以循环了
最近有点爱用do_while了...
今天用了两次...之前基本没用过=.=
%13lf的写法学习了,是在discuss里面看到的
1WA格式(回车)
1Y
#include<stdio.h> #include<math.h> #define PI M_PI #define eps 0.000001 int main(){ double b,h; int t; scanf("%d",&t); while(t--){ double b,h; double A; scanf("%lf%lf",&b,&h); double B=atan( (b/2)/h ); double R=0,res=0; do{ res+=2*R; R=h*sin(B)/(1+sin(B)); h-=2*R; }while(R>eps); printf("%13lf\n",PI*res); if(t)printf("\n"); } return 0; }
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