【BZOJ】【3093】【FDU校赛2012】A Famous Game

概率论

　　神题不会捉啊……挖个坑先

　　orz 贾教 & QuarterGeek

/**************************************************************
    Problem: 3093
    User: Tunix
    Language: C++
    Result: Accepted
    Time:0 ms
    Memory:804 kb
****************************************************************/
 
//BZOJ 3093
#include<cstdio>
int main(){
    int n,p,q,t=0;
    while(scanf("%d%d%d",&n,&p,&q)!=EOF)
        printf("Case %d: %.4f\n",++t,(q+1.0)/(p+2.0));
    return 0;
}