#include <iostream>
#include <stdlib.h>
#include <math.h>

using namespace std;

class student
{
    private:
        int math,Eng,windows,windows1;
        float math1,Eng1;
    public:
        void student::score();
        void student::PrintTitle();   
        void student::Print();
        void student::input();
};    

void student::input()
{
    printf("math分数:");
    cin>>math;
    printf("Eng分数:");
    cin>>Eng;
    printf("windows分数:");
    cin>>windows;
}

void student::score()
{
   float x;
   x=math;
    math1=sqrt(x)*10;
    
    if (math1>100){math1=100;}
    Eng1=((float)Eng-50)*4/5+60;
    windows1=windows+20;
    if (windows1>100){windows1=100;}
}
    
void student::PrintTitle()   
{    
     printf("\n\n%s%12s%9s%10s\n","科目","math","Eng","windows");
     for (int k=0;k<(16+9+10);k++) printf("=");
     printf("\n");     
}

void student::Print()
{ 
    printf("线性调分前  ");
    printf("%4d %8d %9d\n",math,Eng,windows);
    printf("线性调分后  ");
    printf("%3.1f %8.1f %9d\n",math1,Eng1,windows1);
}    



int main(int argc, char *argv[])
{
  
  student John;
  student Mary;
  student Peter;
  
  cout<<"输入John的成绩\n";
  John.input();
  cout<<"输入Mary的成绩\n";
  Mary.input();
  cout<<"输入Peter的成绩\n";
  Peter.input();
  
  John.score();
  Mary.score();
  Peter.score();
  
  John.PrintTitle();
  cout<<"John的成绩\n";
  John.Print();
  cout<<"Mary的成绩\n";
  Mary.Print();
  cout<<"Peter的成绩\n";
  Peter.Print();
  printf("\n"); 
  system("PAUSE");       
  return 0;
}