Medusa Cpp Study/신애

*정사각형짜기*

~cpp 
#include <iostream> 
#include <string> 

using std::cin; 
using std::endl; 
using std::cout; 
using std::string; 

int main() 
{ 
	cout << "숫자를 써 넣으시오: "; 
	int num; 
	cin >> num; 

	int rows = num; 
	int cols = num * 2 - 1; 

    cout << endl; 
	
	for (int r = 0; r != rows; r++) { 
		string::size_type c = 0; 

		while (c != cols) { 
			if (r == 0 || r == rows -1 )
			{
				if (c % 2 == 0)
					cout << "*"; 
				else
					cout << " ";
			}
			else if ( c == 0 || c == cols-1 ) {
				cout << "*";
			} 
			else
                                cout << " ";
			c++;
		} 
		cout << endl; 
	} 
	return 0; 
} 

*직사각형 짜기*

~cpp 
#include <iostream> 
#include <string> 

using std::cin; 
using std::endl; 
using std::cout; 
using std::string; 

int main() 
{ 
	cout << "숫자를 써 넣으시오: "; 
	int a,b; 
	cin >> a;
	cin >> b;

	int rows = a; 
	int cols = b * 2 - 1; 

    cout << endl; 
	
	for (int r = 0; r != rows; r++) { 
		string::size_type c = 0; 

		while (c != cols) { 
			if (r == 0 || r == rows -1 )
			{
				if (c % 2 == 0)
					cout << "*"; 
				else
					cout << " ";
			}
			else if ( c == 0 || c == cols-1 ) {
				cout << "*";
			} 
			else
                                cout << " ";
			c++;
		} 
		cout << endl; 
	} 
	return 0; 
} 

*정삼각형 짜기*

~cpp 
#include <string>
#include <iostream>

using std::cin;
using std::endl;
using std::cout;
using std::string;

int main()
{
	cout << "숫자를 써 넣으시오:";

	int num;
	cin >> num;
    int rows = num;
	int cols = num * 2 - 1;
	for (int r = 0; r != rows; r++ ) {
		string::size_type c = 0;
		while ( c != cols) {
			if (r == rows - 1) {
                if (c % 2 == 0) 
					cout << "*";
				else 
					cout << " ";
			}
			else if (r == 0 ) {
				if ( c == num - 1)
					cout << "*";
				else
					cout << " ";
			}
			else
			{
				if (c == num - 1 - r || c == num - 1 + r)
					cout << "*";
				else
					cout << " ";
			}

			c++;
		}	
		cout << endl;		
	}
    return 0;
}

*정수대입해서 큰수 4개찾기*

~cpp 
#include <iostream>
#include <vector>
#include <algorithm>

using std::cin;
using std::cout;
using std::endl;
using std::vector;
using std::sort;

int main()
{
	cout << "정수값을 입력하시오:";
	int count = 0;
	int x;
	vector<int> number;
	
	while (cin >> x) {
		number.push_back(x);
		count++;
	}

	sort(number.begin (),number.end());
	if (count >= 4) {
		cout << number[number.size() - 4] << "," << number[number.size() - 3] << "," <<number[number.size() - 2] << "," <<number[number.size() - 1];
	}
	else {
		for ( int i=0; i < number.size() ;i++)
			cout << number[i] << ",";
	}
    
	return 0;
}

*string의 길이 긴것과 짧은것 찾기*

~cpp 
#include <iostream> 
#include <algorithm> 
#include <vector> 
#include <string> 
 
using std::cin; 
using std::cout; 
using std::endl; 
using std::vector; 
using std::sort; 
using std::string; 
 
int main() 
{ 
        cout << "문자열을 입력하시오:"; 
        string x; 
        vector<int> english; 
        while (cin >> x) {
			if ( x == ";")
				break;
			else
                english.push_back(x.size()); 
        } 
        sort (english.begin(),english.end()); 
        cout << endl; 
         
        cout << english[english.size()-1] << "," << english[0]; 
 
        return 0; 
}

*마방진 짜기*

~cpp 
#include <iostream>
#include <vector>

using std::cin;
using std::cout;
using std::endl;
using std::vector;



int main()
{
	cout << "숫자를 입력하시오:";
	int num;
	cin >> num;
	vector< vector <int> > board(num);
	for ( int i = 0 ; i < num ; i++)
		board[i].resize(num);

	for(int r = 0; r < num; r++)
	{
		for(int c = 0; c < num; c++)

		{
			cout << board[r][c] << "\t";
		}
		cout << endl;
	}
	return 0;
}

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