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#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
int main()
{
    const int Numb = 7;
    int i;
    int a[7];
    int mn,mx;
    for(int i=0;i<7;i++)
    {
    cout << "Enter 7 numbers into the vector : ";
    cin >> a;
    }
    char choice;
        cout << "\n######################## M E N U ########################";
        cout << "\n A. Find the maximum number in the vector";
        cout << "\n B. Find the minimum number in the vector";
        cout << "\n C. Find the total of numbers in the vector";
        cout << "\n D. Find all prime numbers in the vector";
        cout << "\n Q. Quit Program";
        cout << "\n Enter your choice : ";
        cin >> choice;
       switch(choice)
    {
    case 'A' :
    case 'a' :
         {
             if (a > mx)
             mx=a;
             cout << " The maximum number in the vector is ... " << mx << endl;
             return main();
         }
    break;
    case 'B' :
    case 'b' :
         {
             if(a < mx )
             mn=a;
             cout << " The minimum number in the vector is ... " << mn << endl;
             return main();
         }
    break;
    case 'C' :
    case 'c' :
         {cout<<"\n The total of numbers in the vector is\n";
        
        
         }
    break;
    case 'D' :
    case 'd' :
         {cout<<"\n All prime numbers in the vector : \n";
        
         }
    break;
    case 'Q' :
    case 'q' :
         {cout<<"\n Quit Program\n";
         system("pause");
         return 0;
         }
    break;
// other than <A, B, C or Q>...
   default : cout<<"\n Invalid Choice";
// no break in the default case
   }
   cout<<"\n===============================================";
return main();
}