HDU 3233 Download Manager

下载不会中断，任务总量一定，网速全程最高。那么，直接除就行，不用模拟。

#include
#define CPY(A,B)memcpy(A,B,sizeof(A))
typedef long long LL;
typedef unsigned long long uLL;
const int MOD=1e9+7;
const int INF=0x3f3f3f3f;
const LL INFF=0x3f3f3f3f3f3f3f3fLL;
const double EPS=1e-8;
const double OO=1e20;
const double PI=acos (-1.0);
int dx[]= {0,1,0,-1};
int dy[]= {1,0,-1,0};
int gcd (const LL &a,const LL &b) {return b==0?a:gcd (b,a%b);}
using namespace std;
int main() {
    double n,nn,M,sum;int cas=1;
    while(~scanf("%lf%lf%lf",&n,&nn,&M)&&n){
        sum=0;
        for(int i=0;i