C++ programming 8장 실습문제

1

#include <iostream>
#include <string>

using namespace std;


class Circle {
	int radius;
public:
	Circle(int radius = 0) { this->radius = radius; }
	int getRadius() { return radius; }
	void setRadius(int radius) { this->radius = radius; }
	double getArea() { return 3.14 * radius * radius; }
};
class NamedCircle : public Circle {
	string name;
public:
	NamedCircle(int radius=0, string name=" ") : Circle(radius) {
		this->name = name;
	}
	void show() {
		cout << "반지름이 " << getRadius() << "인 와플";
	}
};
int main() {
	NamedCircle waffle(3, "waffle");
	waffle.show();
	return 0;
	return 0;
}

2

#include <iostream>
#include <string>

using namespace std;


class Circle {
	int radius;
public:
	Circle(int radius = 0) { this->radius = radius; }
	int getRadius() { return radius; }
	void setRadius(int radius) { this->radius = radius; }
	double getArea() { return 3.14 * radius * radius; }
};
class NamedCircle : public Circle {
	string name;
public:
	NamedCircle(int radius=0, string name=" ") : Circle(radius) {
		this->name = name;
	}
	void setName(string name) {
		this->name = name;
	}
	string getName() {
		return name;
	}
	void show() {
		cout << "반지름이 " << getRadius() << "인 와플";
	}
};
int main() {
	NamedCircle pizza[5];
	cout << "5개의 정수반지름과 원의 이름을 입력하세요"<<endl;
	int radius;
	string name;
	for (int i = 0; i < 5; i++) {
		cout << i+1<<">>";
		cin >> radius >> name;
		pizza[i].setRadius(radius);
		pizza[i].setName(name);
		cout << endl;
	}
	int maxArea = 0, maxind=0;
	for (int i = 0; i < 5; i++) {
		if (pizza[i].getArea() > maxArea) {
			maxArea = pizza[i].getArea();
			maxind = i;
		}
	}
	cout << "면적이 가장 큰 피자는 " << pizza[maxind].getName() << "입니다.";
	return 0;
}

3

#include <iostream>
#include <string>

using namespace std;
class Point {
	int x, y;
public:
	Point(int x, int y) { this->x = x; this->y = y; }
	int getX() { return x; }
	int getY() { return y; }
protected:
	void move(int x, int y) { this->x = x; this->y = y; }
};

class ColorPoint : public Point {
	string c;
public:

	ColorPoint(int x, int y, string c) : Point(x, y) {
		this->c = c;
	}
	void setPoint(int x, int y) {
		move(x, y);
	}
	void setColor(string c) {
		this->c = c;
	}
	void show() {
		cout << c << "색으로" << "(" << getX() << "," << getY() << ") 위치한 점입니다." << endl;
	}
};
int main() {
	
	zeroPoint.show();

	ColorPoint cp(5, 5, "RED");
	cp.setPoint(10, 20);
	cp.setColor("BLUE");
	cp.show();
	return 0;
}

4

#include <iostream>
#include <string>

using namespace std;
class Point {
	int x, y;
public:
	Point(int x, int y) { this->x = x; this->y = y; }
	int getX() { return x; }
	int getY() { return y; }
protected:
	void move(int x, int y) { this->x = x; this->y = y; }
};

class ColorPoint : public Point {
	string c;
public:
	ColorPoint(int x, int y, string c) : Point(x, y) {
		this->c = c;
	}
	void setPoint(int x, int y) {
		move(x, y);
	}
	void setColor(string c) {
		this->c = c;
	}
	void show() {
		cout << c << "색으로" << "(" << getX() << "," << getY() << ") 위치한 점입니다.";
	}
};
int main() {
	ColorPoint cp(5, 5, "RED");
	cp.setPoint(10, 20);
	cp.setColor("BLUE");
	cp.show();
	return 0;
}#include <iostream>
#include <string>

using namespace std;
class Point {
	int x, y;
public:
	Point(int x, int y) { this->x = x; this->y = y; }
	int getX() { return x; }
	int getY() { return y; }
protected:
	void move(int x, int y) { this->x = x; this->y = y; }
};

class ColorPoint : public Point {
	string c;
public:
	ColorPoint() : Point(0, 0) { c = "Black"; }
	ColorPoint(int x, int y, string c) : Point(x, y) {
		this->c = c;
	}
	void setPoint(int x, int y) {
		move(x, y);
	}
	void setColor(string c) {
		this->c = c;
	}
	void show() {
		cout << c << "색으로" << "(" << getX() << "," << getY() << ") 위치한 점입니다." << endl;
	}
};
int main() {
	ColorPoint zeroPoint;
	zeroPoint.show();

	ColorPoint cp(5, 5, "RED");
	cp.setPoint(10, 20);
	cp.setColor("BLUE");
	cp.show();
	return 0;
}ss

5

#include <iostream>
#include <string>

using namespace std;

class BaseArray {
private:
	int capacity;
	int* mem;
protected:
	BaseArray(int capacity = 100) {
		this->capacity = capacity; mem = new int[capacity];
	}
	~BaseArray() { delete[] mem; }
	void put(int index, int val) { mem[index] = val; }
	int get(int index) { return mem[index]; }
	int getCapacity() { return capacity; }
};

class MyQueue : public BaseArray{
	int start;
	int end;
public:
	MyQueue(int capacity) : BaseArray(capacity) { start = 0; end = 0; }
	int capacity() { return getCapacity(); }
	int length() { return end - start; }
	void enqueue(int n) { put(end, n); end++; }
	int dequeue() { return get(start++); }
};

int main() {
	MyQueue mQ(100);
	int n;
	cout << "큐에 삽입할 5개의 정수를 입력하라>> ";
	for (int i = 0; i < 5; i++) {
		cin >> n;
		mQ.enqueue(n);
	}
	cout << "큐의 용량:" << mQ.capacity() << ", 큐의 크기:" << mQ.length() << endl;
	cout << "큐의 원소를 순서대로 제거하여 출력한다>> ";
	while (mQ.length() != 0) {
		cout << mQ.dequeue() << ' ';
	}
	cout<<endl<<"큐의 현재 크기 : " << mQ.length() << endl;
	return 0;
}

6

#include <iostream>
#include <string>

using namespace std;

class BaseArray {
private:
	int capacity;
	int* mem;
protected:
	BaseArray(int capacity = 100) {
		this->capacity = capacity; mem = new int[capacity];
	}
	~BaseArray() { delete[] mem; }
	void put(int index, int val) { mem[index] = val; }
	int get(int index) { return mem[index]; }
	int getCapacity() { return capacity; }
};
class MyStack : public BaseArray {
	int top;
public:
	MyStack(int capacity) : BaseArray(capacity) { top = -1; }
	void push(int n) { put(++top, n); }
	int pop(){ return get(top--); }
	int length() { return top + 1; }
	int capacity(){ return getCapacity(); }
};
int main() {
	MyStack mStack(100);
	int n;
	cout << "스택에 삽입할 5개의 정수를 입력하라>> ";
	for (int i = 0; i < 5; i++) {
		cin >> n;
		mStack.push(n);
	}
	cout << "스택의 용량:" << mStack.capacity() << ", 스택의 크기:" << mStack.length() << endl;
	cout << "스택의 원소를 순서대로 제거하여 출력한다>> ";
	while (mStack.length() != 0) {
		cout << mStack.pop() << ' ';
	}
	cout << endl << "스택의 현재 크기 : " << mStack.length() << endl;
	return 0;
	return 0;
}

7