#include <iostream>

using namespace std;

// Amount of students
#define ROW 2
// Amount of grades per subject
#define COL 3
#define SIZE_ARRAY(array) (sizeof(array)/sizeof(array[0]))
#define SIZE2D_ARRAY(array) (sizeof(array[0])/sizeof(array[0][0]))
//proto types
void sortRow(int list[][COL],int r,int c);
void createStudents(string *s, int r);
void enterGrades(string *s,int m[][COL],
 int h[][COL],int e[][COL],int r,int c);
void gradesLowHigh(string *s,int m[][COL],
 int h[][COL], int e[][COL],int r,int c);
void listGradesDescendingOrder(string *s,
 int m[][COL],int h[][COL],int e[][COL],int r,int c);

int main(){

string students[ROW];

/*
2D arrays
**/
int math[ROW][COL];
int history[ROW][COL];
int english[ROW][COL];
int r=0,c=0,i=0;

//string name;
createStudents(students,ROW);
enterGrades(students,math,
history,english,ROW,COL);

/*
Just 3 different ways of passing
size of arrays
**/
//use of macro. helps insure proper size
//incase values have been changed elsewhere
sortRow(math,SIZE_ARRAY(math),SIZE2D_ARRAY(math));
//getting sizeof just before pasing the values
r = sizeof(history)/sizeof(history[0]);
c = sizeof(history[0])/sizeof(history[0][0]);
sortRow(history,r,c);

// USING DEFINE VALUES
sortRow(english,ROW,COL);


gradesLowHigh(students,math,history,english,
ROW,COL);

listGradesDescendingOrder(students,math,
history,english,ROW,COL);


double msum=0,hsum=0,esum=0;
double count=0;
double maverage,haverage,eaverage,average;

 for(int i=0;i<ROW;i++){
   cout<<"\n Averages \n";
    for(int s=0;s<COL;s++){
       msum += math[i][s];
       hsum += history[i][s];
       esum += english[i][s];
    }
      maverage = msum / COL;
      haverage = hsum / COL;
      eaverage = esum / COL;
      cout<<students[i]<<"\n"
      <<"Average,\n"
      <<"Math "<<maverage<<"\n"
      <<"History "<<haverage<<"\n"
      <<"English "<<eaverage<<"\n";
   maverage=0; haverage=0; eaverage=0;
   msum=0; hsum=0; esum=0;
 }

return 0;
}

void createStudents(string *s, int r){
// auto create students names
  string name;
    for(int i=0;i<r;i++)
    {
      auto name = "bob " + to_string(i+1);
      s[i] = name;
    }
}
void enterGrades(string *s,int m[][COL],
int h[][COL],int e[][COL],
int r,int c)
{
//enter grades 
 for(int i=0;i<r;i++)
 {
   cout<<"Enter "<<c<<" grades percent "
   <<"for\n "<<s[i]<<" "
   <<"\nMath \n";
     for(int g=0;g<c;g++)
      cin>>m[i][g];
    cout<<"History \n";
   for(int p=0;p<c;p++)
      cin>>h[i][p];
   cout<<"English \n";
   for(int k=0;k<c;k++)   
      cin>>e[i][k];
 }
cout<<"\n\n";
}
void gradesLowHigh(string *s,int m[][COL],
int h[][COL],int e[][COL],int r,int c)
{
int ck=0;
    for(int i=0;i<r;i++){
       ck++;
       cout<<"Student Name\n"<<s[i]<<"\n";
     if(ck==1)
      {
        cout<<"Highest Grade\tLowest Grade\n";
        ck=0;
      }
       cout<<"\nMath\n"
       <<m[i][0]<<"\t\t"<<m[i][c-1]<<"\n"
       <<"History\n"
       <<h[i][0]<<"\t\t"<<h[i][c-1]<<"\n" 
       <<"English\n"
       <<e[i][0]<<"\t\t"<<e[i][c-1]<<"\n\n";
    }
}


void listGradesDescendingOrder(string *s,
int m[][COL],int h[][COL],int e[][COL],
int r,int c){
 
  cout<<"\nGrades\n";
  for(int i=0;i<r;i++){
      cout<<"Student Name\n";
      cout<<s[i]<<"\n";
      cout<<"\nMath\n";
     for(int k=0;k<c;k++)
         cout<<m[i][k]<<" ";
         cout<<"\nHistory\n";
       for(int j=0;j<c;j++)
           cout<<h[i][j]<<" ";
           cout<<"\nEnglish\n";
         for(int n=0;n<c;n++)
             cout<<e[i][n]<<" ";
             cout<<"\n";
   }
}
void sortRow(int list[][COL],int r,int c){
//loop rows
for(int i=0;i<r;i++){
 //loop column
 for(int j=0; j<c;j++){
  //loop comparison and swap
   for(int k=0;k<c-j-1;k++){
//  if(list[i][k] > list[i][k+1]){
  if(list[i][k] < list[i][k+1]){
       //swap ellrment
       swap(list[i][k],list[i][k+1]);
     }
    }
   }
  }
}