HW10

#include <iostream>
#include <cstring>
#pragma warning (disable : 4996)
using namespace std;

class Time {
private:
	int hour;
	int min;
public:
	Time();
	Time(int, int);
	Time(double);
	Time(const Time &tr);
	Time plus(const Time &tr);
	void setHour(int);
	int getHour() const;
	void setMin(int);
	int getMin() const;
};

Time::Time(){
	this->hour = 0;
	this->min = 0;
}

Time::Time(int hour, int min) {
	this->hour = hour;
	this->min = min;
}

Time::Time(double time) {
	this->hour = int(time);
	this->min = int((time - double(this->hour)) * 60);
}

Time::Time(const Time &tr) {
	this->hour = tr.hour;
	this->min = tr.min;
}

Time Time::plus(const Time &tr) {
	this->hour += tr.getHour();
	this->min += tr.getMin();
	if (this->min >= 60) {
		this->hour += this->min / 60;
		this->min %= 60;
	}
	return *this;
}

void Time::setHour(int hour) {
	this->hour = hour;
}

void Time::setMin(int min) {
	this->min = min;
}

int Time::getHour() const{
	return this->hour;
}

int Time::getMin() const{
	return this->min;
}

int main() {
	Time a(3, 20), b;
	cout << a.getHour() << "시간" << a.getMin() << "분" << endl;
	b.setHour(4);
	b.setMin(42);
	cout << b.getHour() << "시간" << b.getMin() << "분" << endl;
	Time res = a.plus(b);
	cout << "두 시간을 더하면 : " << res.getHour() << "시간" << res.getMin() << "분" << endl;
	return 0;
}

HW12

#include <iostream>
#include <cstring>
#pragma warning (disable : 4996)
using namespace std;

class Save {
private:
	char name[20];
	int capital;
	int profit;
	int tax;
	int tot;
	static double ratio;
public:
	static double tax_ratio;
	Save(const char *np = "아무개", int n = 0);
	~Save() {};
	void calculate();
	static void set_ratio(double r);
	char *getName() const;
	int getCap() const;
	int getPro() const;
	int getTax() const;
	int getTot() const;
	double getRat() const;
	double getTaxRat() const;
};

double Save::ratio = 0.2;
double Save::tax_ratio = 0.1;

Save::Save(const char *np, int n) {
	if (np != NULL) {
		strcpy(this->name, np);
	}
	this->capital = n;
}

void Save::calculate() {
	this->profit = int(this->capital * this->ratio);
	this->tax = int(this->profit * this->tax_ratio);
	this->tot = int(this->capital + this->profit - this->tax);
}

void Save::set_ratio(double r){
	Save::ratio = r;
}

char* Save::getName() const {
	cout << "이름 : ";
	return (char*)(this->name);
}

int Save::getCap() const {
	cout << endl << "원금 : ";
	return this->capital;
}

int Save::getPro() const {
	cout << endl << "이자소득 : ";
	return this->profit;
}

int Save::getTax() const {
	cout << endl << "세금 : ";
	return this->tax;
}

int Save::getTot() const {
	cout << endl << "총금액 : ";
	return this->tot;
}

double Save::getRat() const {
	cout << endl << "이율 : ";
	return this->ratio;
}

double Save::getTaxRat() const {
	cout << endl << "세율 : ";
	return this->tax_ratio;
}

int main() {
	Save a("철이", 1000000), b("메텔", 2000000);
	a.calculate();
	cout << a.getName();
	cout << a.getCap();
	cout << a.getPro(); 
	cout << a.getTax();
	cout << a.getTot();
	cout << a.getRat();
	cout << a.getTaxRat() << endl << endl;
	Save::tax_ratio = 0.15;
	Save::set_ratio(0.25);
	b.calculate();
	cout << b.getName();
	cout << b.getCap();
	cout << b.getPro();
	cout << b.getTax();
	cout << b.getTot();
	cout << b.getRat();
	cout << b.getTaxRat() << endl << endl;
	return 0;
}