hdu6154-CCPC网络赛&规律-CaoHaha's staff

http://acm.hdu.edu.cn/showproblem.php?pid=6154
队友写的，画了好久，很强势

#include <bits/stdc++.h>

using namespace std;

int main()
{
     int t,k;
     scanf("%d",&t);
     while(t--)
     {
         scanf("%d",&k);
         int i=ceil(sqrt((double)k/2.0));
         int bb[4];
         bb[0]=4*i;
         bb[1]=bb[0]-1;
         bb[2]=bb[1]-1;
         bb[3]=bb[2]-1;
          /* for(int i=0;i<4;i++) cout<<bb[i]<<" "; cout<<endl;*/
         double aa[4];
         aa[0]=2*i*i;
         aa[1]=aa[0]-(double)(i*2+1)/2.0;
         aa[2]=aa[1]-(double)((i-1)*2+1)/2.0;
         aa[3]=aa[2]-(double)((i-1)*2+1)/2.0;

         /*for(int i=0;i<4;i++) cout<<aa[i]<<" "; cout<<endl;*/
         int biao=0;
         for(int i=0;i<4;i++)
         {
             if(aa[i]>=k)
                biao=i;
         }
        // cout<<"biao:"<<biao<<endl;
         printf("%d\n",bb[biao]);
     }
    return 0;
}