OpenJudge 2973 Skew数

 1 #include<stdio.h>

 2 int main()

 3 {

 4     int i,s,t,sum;

 5     char skew[32];

 6     while(scanf("%s",skew))

 7     {

 8         for(sum=t=i=0;skew[i];i++)

 9         {

10             sum=(sum<<1)+skew[i]-'0';

11             t+=skew[i]-'0';

12         }

13         sum=(sum<<1)-t;

14         if(!sum)  break;

15         printf("%d\n",sum);

16     }

17     return 0;

18 }