/******************************************************************************************
ex1.cpp
    Working our way to dynamic criteria
    baseline example, working with state data
******************************************************************************************/
#include <iostream>
#include <string>
#include <fstream>

using namespace std;

// class definition
class person {
    public:
        string first;
        string last;
        string state;
};

// prototypes
void readFile(string filename, person [], const int maximum, int& size);

// MAIN!
void main() {
    int count=0;
    const int maxsize=100;
    person census[maxsize];

    string filename;
    cout << "Enter the file to read: ";
    cin >> filename;
    readFile(filename, census, maxsize, count);

    int countState = 0;
    for (int i = 0; i < count; i++)
        if (census[i].state == "NY")
            countState++;

    cout << countState << " records of " << count << " from New York." << endl;

    float percent = (float)countState/count;
    cout.precision(0);
    cout.setf(ios::fixed);
    cout << percent*100 << "% of records from New York." << endl;
}

//------- fill each person in the list from a file ------
void readFile(string filename, person people[], const int maximum, int& size) {
    ifstream fin(filename.c_str());

    for (int i=0; i < maximum; i++) {
        if(fin >> people[i].first >> people[i].last >> people[i].state)
            size++;
    }
}