Подсчитать общее количество часов по массиву структур "Субботник"

struct Person
{
    char *first_name;
    char *last_name;
    char *full_name;
};
 
struct Schedule
{
    enum Months
    {
        january = 0,
        february = 1,
        may = 2
    };
    Person *person;
    double hours[3];
};
 
Person *person = new Person();
 
double hours[3];
hours[Schedule::Months::january] = ...;
hours[Schedule::Months::february] = ...;
hours[Schedule::Months::may] = ...;
 
Schedule schedule;
schedule.person = person;
schedule.hours = hours;

#include <iostream>
using namespace std;
 
 
struct Sybbotnik {
    string FIO;
    int January;// kol-vo sybotnikov
    int February;// kol-vo sybotnikov
    int Mart;// kol-vo sybotnikov
    int Hours; // kol-vo 4asov rabotu v den
    int Obshee;
};
 
Sybbotnik Add() {
    Sybbotnik A;
    cout << "Vvedite FIO: "; cin >> A.FIO;
    cout << "Vvedite kol-vo sybbotnikov v Yanvare: "; cin >> A.January;
    cout << "Vvedite kol-vo sybbotnikov v Fevrale: "; cin >> A.February;
    cout << "Vvedite kol-vo sybbotnikov v Marte: "; cin >> A.Mart;
    cout << "Vvedite kol-vo chasov rabotu v den:"; cin >> A.Hours;
    A.Obshee = (A.January + A.February + A.Mart)*A.Hours;
    return A;
}
void Show(Sybbotnik A) {
    cout << "FIO: " << A.FIO << endl;
    cout << "Sybbotnikov v Yanvare: " << A.January << endl;
    cout << "Sybbotnikov v Fevrale: " << A.February << endl;
    cout << "Sybbotnikov v Marte: " << A.Mart << endl;
    cout << "Kol-vo chasov rabotu v den: " << A.Hours << endl;
    cout << "Vsego: " << A.Obshee;
}
 
int main()
{
    setlocale(LC_ALL, "");
    
    Sybbotnik A = Add();
 
    Show(A);
    
    
 
    _getch();
    return 0;
}