1001. 害死人不偿命的(3n+1)猜想 (15)

#include<iostream>
#include<vector>
#include<cmath>
#include<string>
#include<algorithm>
#include<iomanip>
using namespace std;
#define Max 1000
int  Count = 0;
 int Fun( int n )
 {
     if( n==1 )
        return Count;
     if( n%2==0 ){
        Count++;
        Fun(n/2);
     }
     else
     {
         Count++;
         Fun( (3*n+1)/2 );
     }

 }

int main()
{
      int a[Max+1];
      for( int i=1; i<=Max; i++ )
      {
          Count=0;
          a[i]=Fun(i);
      }
      int num;
      while( cin>>num )
        cout<<a[num]<<endl;
      return 0;
}