cf C. Cupboard and Balloons

http://codeforces.com/contest/342/problem/C

#include <cstdio>
#include <cstring>
#include <cmath>
#include <algorithm>
using namespace std;

__int64 r,h;

int main()
{
    while(scanf("%I64d%I64d",&r,&h)!=EOF)
    {
        __int64 t2=(h/r)*2;
        if((h%r)*2<r) t2++;
        else if((h%r)*2>=sqrt(3.0)*r) t2+=3;
        else t2+=2;
        printf("%I64d
",t2);
    }
    return 0;
}