poj3077

这题需要进行许多次四舍五入，得到最终结果，四舍五入的方法是(int)(x + 0.5)

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      #include 
    
      <
    
      iostream
    
      >
    
      
#include 
    
      <
    
      cstdlib
    
      >
    
      
#include 
    
      <
    
      cstring
    
      >
    
      
#include 
    
      <
    
      cstdio
    
      >
    
      

    
      using
    
       
    
      namespace
    
       std;


    
      int
    
       main()
{
 
    
      //
    
      freopen("D:\\t.txt", "r", stdin);
    
      

    
       
    
      int
    
       t;
 scanf(
    
      "
    
      %d
    
      "
    
      , 
    
      &
    
      t);
 
    
      while
    
       (t
    
      --
    
      )
 {
 
    
      int
    
       n, count 
    
      =
    
       
    
      0
    
      ;
 scanf(
    
      "
    
      %d
    
      "
    
      , 
    
      &
    
      n);
 
    
      double
    
       x 
    
      =
    
       n;
 
    
      while
    
       (x 
    
      >=
    
       
    
      10
    
      )
 {
 x 
    
      /=
    
       
    
      10
    
      ;
 x 
    
      =
    
       (
    
      int
    
      )(x 
    
      +
    
       
    
      0.5
    
      );
 count
    
      ++
    
      ;
 }
 n 
    
      =
    
       (
    
      int
    
      )x;
 
    
      for
    
       (
    
      int
    
       i 
    
      =
    
       
    
      0
    
      ; i 
    
      <
    
       count; i
    
      ++
    
      )
 n 
    
      *=
    
       
    
      10
    
      ;
 printf(
    
      "
    
      %d\n
    
      "
    
      , n);
 }
 
    
      return
    
       
    
      0
    
      ;
}