uva 11646(大水题-几何分类)
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1 #include<cstdlib> 2 #include<iostream> 3 #include<cstdio> 4 #include<cmath> 5 #include<cstring> 6 #include<algorithm> 7 #include<set> 8 #include<map> 9 #include<list> 10 #include<queue> 11 #include<vector> 12 #define ULL unsigned long long 13 #define LL long long 14 #define UI unsigned int 15 #define inf 0x7fffffff 16 #define eps 1e-7 17 #define N 100009 18 #define M 20009 19 using namespace std; 20 int T,n,m,k,t; 21 double a,b,r,ang,h; 22 int main() 23 { 24 #ifndef ONLINE_JUDGE 25 freopen("ex.in","r",stdin); 26 // freopen("ex.out","w",stdout); 27 #endif 28 int ncase=0; 29 while (~scanf("%lf : %lf",&a,&b)) 30 // scanf("%d",&T); 31 // while (T--) 32 { 33 r=sqrt(a*a+b*b); 34 ang=asin(b/r)*2; 35 h=ang*r/2.0; 36 printf("Case %d: %.10lf %.10lf\n",++ncase,200.0/(h+a)*a,200.0/(h+a)*b); 37 // printf("%d",ans); 38 } 39 return 0; 40 }