poj1799

简单题

View Code

   
     

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

    
      using
    
       
    
      namespace
    
       std;


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

    
       
    
      int
    
       t;
 scanf(
    
      "
    
      %d
    
      "
    
      , 
    
      &
    
      t);
 
    
      for
    
       (
    
      int
    
       i 
    
      =
    
       
    
      0
    
      ; i 
    
      <
    
       t; i
    
      ++
    
      )
 {
 
    
      double
    
       r;
 
    
      int
    
       n;
 scanf(
    
      "
    
      %lf%d
    
      "
    
      , 
    
      &
    
      r, 
    
      &
    
      n);
 printf(
    
      "
    
      Scenario #%d:\n%.3f\n\n
    
      "
    
      , i 
    
      +
    
       
    
      1
    
      , (
    
      1
    
       
    
      -
    
       
    
      1
    
       
    
      /
    
       (
    
      1
    
       
    
      +
    
       sin(
    
      3.1415926
    
       
    
      /
    
       n))) 
    
      *
    
       r);
 }
 
    
      return
    
       
    
      0
    
      ;
}