BZOJ 1666 USACO 2006 Oct. 奶牛的数字游戏

　　直接模拟2333

 #include<cstdio>
 #include<algorithm>
 using namespace std;
 int n,ans;
 void read(int &k){
     k=; int f=; char c=getchar();
     while (c<''||c>'')c=='-'&&(f=-),c=getchar();
     while (''<=c&&c<='')k=k*+c-'',c=getchar();
     k*=f;
 }
 int main(){
     read(n);
     while (n!=){
         if (n&) n=n*+;
         else n=n/;
         ans++;
     }
     printf("%d",ans);
 }