JUNGOL 기초다지기 16 구조체

프로그래밍에서 가장 기초적인 내용을 다루는 기초 다지기입니다.

이번 포스팅은 기초 다지기 중 열여섯 번째인 구조체 문제를 풀어보도록 하겠습니다.

 

기초 내용인 만큼 다른 설명없이 문제와 코드만 간단하게 작성하도록 하겠습니다.

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613 : 구조체 - 자가진단1

#include <iostream>
#include <string>

using namespace std;

struct Person
{
	string name;
	string school;
	int grade;
};

int main()
{
	Person p;

	cin >> p.name >> p.school >> p.grade;

	cout << "Name : " << p.name << endl;
	cout << "School : " << p.school << endl;
	cout << "Grade : " << p.grade << endl;
}

 

614 : 구조체 - 자가진단2

#include <iostream>
#include <string>

using namespace std;

struct Person
{
	string school;
	int grade;
};

int main()
{
	Person p1{ "Jejuelementary", 6 }, p2;

	cin >> p2.school >> p2.grade;

	cout << p1.grade << " grade in " << p1.school << " School\n";
	cout << p2.grade << " grade in " << p2.school << " School\n";
}

 

615 : 구조체 - 자가진단3

#include <iostream>
#include <string>

using namespace std;

struct Person
{
	string name;
	int ko;
	int en;
};

int main()
{
	Person people[2];

	for (int i = 0; i < 2; ++i)
	{
		cin >> people[i].name >> people[i].ko >> people[i].en;
	}

	for (int i = 0; i < 2; ++i)
	{
		cout << people[i].name << ' ' << people[i].ko << ' ' << people[i].en << endl;
	}

	int avg[2]{
		(people[0].ko + people[1].ko) / 2,
		(people[0].en + people[1].en) / 2 
	};

	cout << "avg " << avg[0] << ' ' << avg[1] << endl;
}

 

616 : 구조체 - 자가진단4

#include <iostream>

using namespace std;

template <typename T>
struct Point
{
	T x;
	T y;
};

int main()
{
	Point<int> points[3];

	Point<float> c{ 0, 0 };
	for (int i = 0; i < 3; ++i)
	{
		cin >> points[i].x >> points[i].y;
		c.x += points[i].x;
		c.y += points[i].y;
	}

	cout.setf(ios::fixed);
	cout.precision(1);

	c.x /= 3.f;
	c.y /= 3.f;
	cout << '(' << c.x << ", " << c.y << ")\n";
}

 

617 : 구조체 - 자가진단5

#include <iostream>
#include <string>

using namespace std;

struct Person
{
	string name;
	int height;
};

int main()
{
	Person shortestPerson{ "", 9999 };
	Person temp;

	for (int i = 0; i < 5; ++i)
	{
		cin >> temp.name >> temp.height;
		if (temp.height < shortestPerson.height)
		{
			shortestPerson.name = temp.name;
			shortestPerson.height = temp.height;
		}
	}

	cout << shortestPerson.name << ' ' << shortestPerson.height << endl;
}

 

618 : 구조체 - 자가진단6

#include <iostream>
#include <string>

using namespace std;

struct Person
{
	string name;
	int height;
	float weight;
};

int main()
{
	Person people[5];

	for (int i = 0; i < 5; ++i)
	{
		cin >> people[i].name >> people[i].height >> people[i].weight;
	}

	cout.setf(ios::fixed);
	cout.precision(1);

	for (int i = 0; i < 5; ++i)
	{
		for (int j = 0; j < 4 - i; ++j)
		{
			if (people[j].name > people[j + 1].name)
			{
				swap(people[j], people[j + 1]);
			}
		}
	}

	cout << "name" << endl;
	for (int i = 0; i < 5; ++i)
	{
		cout << people[i].name << ' ' << 
			people[i].height << ' ' << people[i].weight << endl;
	}

	cout << endl;
	for (int i = 0; i < 5; ++i)
	{
		for (int j = 0; j < 4 - i; ++j)
		{
			if (people[j].weight < people[j + 1].weight)
			{
				swap(people[j], people[j + 1]);
			}
		}
	}

	cout << "weight" << endl;
	for (int i = 0; i < 5; ++i)
	{
		cout << people[i].name << ' ' <<
			people[i].height << ' ' << people[i].weight << endl;
	}
}

 

195 : 구조체 - 형성평가1

#include <iostream>
#include <string>

using namespace std;

struct Person
{
	string name;
	string tel;
	string addr;
};

int main()
{
	Person people;

	cin >> people.name >> people.tel >> people.addr;

	cout << "name : " << people.name << endl;
	cout << "tel : " << people.tel << endl;
	cout << "addr : " << people.addr << endl;
}

 

196 : 구조체 - 형성평가2

#include <iostream>
#include <string>

using namespace std;

struct Person
{
	string name;
	string tel;
	string addr;
};

int main()
{
	Person people[3];

	for (int i = 0; i < 3; ++i)
	{
		cin >> people[i].name >> people[i].tel >> people[i].addr;
	}

	for (int i = 0; i < 3; ++i)
	{
		int fast{ i };
		for (int j = i + 1; j < 3; ++j)
		{
			if (people[fast].name > people[j].name)
				fast = j;
		}
		
		swap(people[fast], people[i]);
	}

	cout << "name : " << people[0].name << endl;
	cout << "tel : " << people[0].tel << endl;
	cout << "addr : " << people[0].addr << endl;
}

 

197 : 구조체 - 형성평가3

 

그림이 나왔지만 사실 간단하게 생각하면 왼쪽 아래 좌표는 더 작은 값을 선택하고 오른쪽 위 값은 더 큰 값을 선택하면 됩니다.

#include <iostream>

using namespace std;

struct Point
{
	int x;
	int y;
};

struct Box
{
	Point lb;
	Point ru;
};

int main()
{
	Box a, b;

	cin >> a.lb.x >> a.lb.y >> a.ru.x >> a.ru.y;
	cin >> b.lb.x >> b.lb.y >> b.ru.x >> b.ru.y;

	Box c;
	c.lb.x = a.lb.x < b.lb.x ? a.lb.x : b.lb.x;
	c.lb.y = a.lb.y < b.lb.y ? a.lb.y : b.lb.y;
	c.ru.x = a.ru.x > b.ru.x ? a.ru.x : b.ru.x;
	c.ru.y = a.ru.y > b.ru.y ? a.ru.y : b.ru.y;

	cout << c.lb.x << ' ' << c.lb.y << ' ' << c.ru.x << ' ' << c.ru.y << endl;
}

 

198 : 구조체 - 형성평가4

#include <iostream>

using namespace std;

struct Person
{
	int height;
	float weight;
};

int main()
{
	Person f, m;

	cin >> f.height >> f.weight;
	cin >> m.height >> m.weight;

	Person c;
	c.height = (f.height + m.height) / 2 + 5;
	c.weight = (f.weight + m.weight) / 2 - 4.5f;

	cout.setf(ios::fixed);
	cout.precision(1);

	cout << "height : " << c.height << "cm\n";
	cout << "weight : " << c.weight << "kg\n";
}

 

199 : 구조체 - 형성평가5

#include <iostream>
#include <string>

using namespace std;

struct Person
{
	string name;
	int score[3];
	int total{ 0 };
};

int main()
{
	int n;

	cin >> n;
	Person* people = new Person[n];

	for (int i = 0; i < n; ++i)
	{
		cin >> people[i].name;
		for (int j = 0; j < 3; ++j)
		{
			cin >> people[i].score[j];
			people[i].total += people[i].score[j];
		}
	}

	for (int i = 0; i < n; ++i)
	{
		for (int j = 0; j < n - i - 1; ++j)
		{
			if (people[j].total < people[j + 1].total)
			{
				swap(people[j], people[j + 1]);
			}
		}
	}

	for (int i = 0; i < n; ++i)
	{
		cout << people[i].name << ' ';
		for (int j = 0; j < 3; ++j)
		{
			cout << people[i].score[j] << ' ';
		}
		cout << people[i].total << endl;
	}

	delete[] people;
}

 

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