#include <iostream>
#include <cctype>
using namespace std;
bool strong_pass(char[], int);
int main()
{
const int size = 30;	//allowing the user to enter a relatively bigger password
char password[size];
char go;


//Function call
do
{
cout << "Please enter a password " <<endl;
cin.getline(password, size);

if(strong_pass(password, size))
cout << "Strong password successfully entered" << endl;
else
{
cout << "Not a reliable password" << endl;
cout << "Enter at least one digit or one upper case letter." << endl;
}
//Prompting the user for another go
cout << "Would you like to enter another password? (Y or N) " << endl;
cin >> go;

//Input validation
while(toupper(go) != 'Y' && toupper(go) != 'N')

{
cout <<"Invalid input. Enter either Y or N " << endl;
cin >> go;
}
}while (toupper(go) == 'Y');
return 0;
}
bool strong_pass(char userinput[], int maxmin)
{

bool E = false;

//size validation
bool A = false;
if(strlen(userinput)>= 8 && strlen(userinput) <= 10)
A = true;

bool B = false;
int count = 0;
char binga;
while(userinput[count])
{
binga = userinput[count];

//deosn't really utilize the logical Or operation
if(isupper(binga)) //maybe the first occurence of an uppercase letter should be enough
B = true;
count++;
}
//testing for a lower case character
bool C = false;
int index = 0;
char terminator;
while(userinput[index])
{
terminator = userinput[index];
if(islower(terminator))
C = true;
index++;
}

//testing for a digit or a numeric input in the password
bool D = false;
int punter = 0;
char mcgrath;
while(userinput[punter])
{
mcgrath = userinput[punter];
if(isdigit(mcgrath))
D = true;
punter++;
}

// Using the logical AND operations to test the occurence of every single of the above conditions

E = A && B && C && D;

return E;
}