#include <iostream>
using namespace std;

const int quant=2;
const int marks=1;

void EnterInfo(int k);
void Displayinfo(int k);
void Sort();


struct student
{
    char name[20];
    char group[5];
    int marks[5];
    float medmark;
}
person[quant];

int main()
{

int ch=1;
char ch2='y';
while(ch!=0)
{
    cout<<"Make a choice: "<<endl
        <<"1 - Edit"<<endl
        <<"2 - Show"<<endl
        <<"3 - Sort"<<endl
        <<"0 - Exit"<<endl;
    cout<<"-------------------------"<<endl;
        cin>>ch;
    switch(ch)
    {
    case 1:
        for(int i=0;i<quant;i++)
        {
            cout<<"Info for Student: "<<i+1<<endl;
            //cout<<"This student?(y/n)"<<endl;
            //cin>>ch2;
            ////if(ch2=='y')
            //{
                EnterInfo(i);
            //}
            //else
            //  continue;
        }
        break;
    case 2:
        for(int i=0;i<quant;i++)
        {
            if((person[i].name)!="/0")
            Displayinfo(i);
            else
                continue;
        }
        break;
    case 3:
        Sort();
        break;
    default:
        return 0;
    }
}
return 0;
}

void EnterInfo(int k)
{
    cout<<"Enter info: "<<endl
        <<"============"<<endl
        <<"Name: "<<endl;
    cin>>person[k].name;
    cout<<"Group: "<<endl;
    cin>>person[k].group;
    cout<<"Marks: "<<endl;
    for(int j=0;j<marks;j++)
    {
        cout<<"Mark: "<<j+1<<" is: ";
        cin>>person[k].marks[j];
        person[k].medmark+=person[k].marks[j];
    }
}
void Displayinfo(int k)
{
    cout<<"Name: "<<person[k].name<<" Group: "<<person[k].group<<" Med mark: "<<person[k].medmark<<endl
        <<"---"<<endl;
}
void Sort()
{
    int sort[quant];
    float tmp;
    char tmpName[20];
    char tmpGroup[20];
// sorting
   for(int i = 0; i <= quant-1; i++)
   {
      for( int j = 0; j <= quant-2-i; j++)
      {
          if( person[j].medmark < person[j+1].medmark)
          {
              tmp      = person[j].medmark;
              strcpy(tmpName,person[j].name);
              strcpy(tmpGroup, person[j].group);

              person[j].medmark = person[j+1].medmark;
              strcpy(person[j].name,person[j+1].name);
              strcpy(person[j].group,person[j+1].group);

              person[j+1].medmark = tmp;
              strcpy(person[j+1].name,tmpName);
              strcpy(person[j+1].group,tmpGroup);

          }
      }
   }
   for(int i=0;i<quant;i++)
        Displayinfo(i);
}