www.pudn.com > zhejiang_university_acm_onlinejudge_code.rar > zp1048.cpp

//--------------------------------------------------------------------------- 
 
#include  
#pragma hdrstop 
 
//--------------------------------------------------------------------------- 
 
#pragma argsused 
#include  
int main(int argc, char* argv[]) 
{ 
  int i; 
  double d,s; 
  while(scanf("%lf",&d)>0) 
  { 
    s=d; 
    for (i=1;i<12;i++) 
    { 
      scanf("%lf",&d); 
      s+=d; 
    } 
    printf("$%.2lf\n",s/12); 
  } 
  return 0; 
} 
//---------------------------------------------------------------------------