ZOJ 1712 Skew Binary

简单题

Skew Binary

   
     

    
      
    
       1 
    
      #include
    
      <
    
      iostream
    
      >
    
      

    
       2 
    
      #include
    
      <
    
      string
    
      >
    
      

    
       3 
    
      #include
    
      <
    
      cmath
    
      >
    
      

    
       4 
    
       
    
      using
    
       
    
      namespace
    
       std;

    
       5 
    
      

    
       6 
    
      
    
      int
    
       main()

    
       7 
    
      {

    
       8 
    
       
    
      string
    
       a;

    
       9 
    
       
    
      long
    
       num 
    
      =
    
       
    
      0
    
      ;

    
      10 
    
       
    
      int
    
       count 
    
      =
    
       
    
      1
    
      ;

    
      11 
    
      
    
      //
    
       freopen("test.txt", "r", stdin);
    
      

    
      12 
    
      
    
       
    
      while
    
       (cin 
    
      >>
    
       a 
    
      &&
    
       a 
    
      !=
    
       
    
      "
    
      0
    
      "
    
      )

    
      13 
    
       {

    
      14 
    
       
    
      for
    
       (
    
      int
    
       i 
    
      =
    
       a.length() 
    
      -
    
       
    
      1
    
      ; i 
    
      >=
    
       
    
      0
    
      ; i
    
      --
    
      )

    
      15 
    
       {

    
      16 
    
       num 
    
      +=
    
       (a[i] 
    
      -
    
       
    
      '
    
      0
    
      '
    
      )
    
      *
    
       (pow ((
    
      double
    
      )
    
      2
    
      , count
    
      ++
    
      ) 
    
      -
    
       
    
      1
    
       );

    
      17 
    
       }

    
      18 
    
       cout 
    
      <<
    
       num 
    
      <<
    
       endl;

    
      19 
    
       num 
    
      =
    
       
    
      0
    
      ;

    
      20 
    
       count 
    
      =
    
       
    
      1
    
      ;

    
      21 
    
       }

    
      22 
    
      

    
      23 
    
       
    
      return
    
       
    
      0
    
      ;

    
      24 
    
      }