실전 C프로그래밍 문제모음

gistfile1.txt

/**************************************
국민대학교 컴퓨터공학부 20103324 김현우
문제 8 : 시간 계산
***************************************/


#include <iostream>
#include <fstream>
#include <cstdlib>

using namespace std;

void main(void)
{
	ifstream inStream;
	int numTestCases;

	inStream.open("input.txt");
	if(inStream.fail())
	{
		cerr << "Input file opening failed\n";
		exit(1);
	}

	inStream >> numTestCases;

	for(int i=0; i<numTestCases; i++)
	{
		int people,H,M,S,h,m,s,w,o,r,k,result;
		result=w=o=r=k=0;
		

		inStream >> people;
		for(int j=0; j<people; j++)
		{
			inStream >> H >> M >> S >> h >> m >> s;
			result+=(h*3600+m*60+s)-(H*3600+M*60+S);
		}

		w=result/86400;
		result%=86400;
		o=result/3600;
		result%=3600;
		r=result/60;
		result%=60;
		k=result;
		cout << w << " " << o << " " << r << " " << k << "\n";
	}

	inStream.close();
}

gistfile2.txt

/**************************************
국민대학교 컴퓨터공학부 20103324 김현우
문제 9 : 주어진 정수의 최대, 최소 구하기
***************************************/


#include <iostream>
#include <fstream>
#include <cstdlib>

using namespace std;

int getNum(int num1, int num2, bool isgetmax);

void main(void)
{
	ifstream inStream;
	int numTestCases;

	inStream.open("input.txt");
	if(inStream.fail())
	{
		cerr << "Input file opening failed\n";
		exit(1);
	}

	inStream >> numTestCases;

	for(int i=0; i<numTestCases; i++)
	{
		int count,val,min,max;
		inStream >> count >> val;
		min=max=val;
		for(int j=1; j<count; j++)
		{
			inStream >> val;
			max = getNum(val, max, true);
			min = getNum(val, min, false);
		}

		cout << max << " " << min << "\n";
	}

	inStream.close();
}

int getNum(int num1, int num2, bool ismax)
{
	if(ismax) return num1>=num2?num1:num2;
	else return num1<=num2?num1:num2;
}

gistfile3.txt

/**************************************
국민대학교 컴퓨터공학부 20103324 김현우
문제 10 : 숫자로 삼각형 출력하기
***************************************/


#include <iostream>
#include <fstream>
#include <cstdlib>

using namespace std;

void drawTriangle(int size);

void main(void)
{
	ifstream inStream;
	int numTestCases;

	inStream.open("input.txt");
	if(inStream.fail())
	{
		cerr << "Input file opening failed\n";
		exit(1);
	}

	inStream >> numTestCases;

	for(int i=0; i<numTestCases; i++)
	{
		int sizeOfTriangle;
		inStream >> sizeOfTriangle;
		drawTriangle(sizeOfTriangle);
	}

	inStream.close();
}

void drawTriangle(int size)
{
	for(int i=1; i<=size; i++)
	{
		int temp1=size, temp2=i;

		cout << temp2 << " ";
		for(int j=1; j<i; j++)
		{
			temp2+=--temp1;
			cout << temp2 << " ";
		}
		cout << "\n";
	}
}

gistfile4.txt

/**************************************
국민대학교 컴퓨터공학부 20103324 김현우
문제 12 : 다이아몬드 모양 출력하기
***************************************/


#include <iostream>
#include <fstream>
#include <cstdlib>

using namespace std;

void drawDiamond(int size);

void main(void)
{
	ifstream inStream;
	int numTestCases;

	inStream.open("input.txt");
	if(inStream.fail())
	{
		cerr << "Input file opening failed\n";
		exit(1);
	}

	inStream >> numTestCases;

	for(int i=0; i<numTestCases; i++)
	{
		int sizeOfTriangle;
		inStream >> sizeOfTriangle;
		drawDiamond(sizeOfTriangle);
	}

	inStream.close();
}

void drawDiamond(int size)
{
	int temp1=size/2+1, temp2=1, k=1;
	
	for(int i=1; i<=size; i++)
	{
		k=1;
		while(k++<temp1) cout << "*";
		k=1;
		while(k++<=temp2) cout << "+";
		k=1;
		while(k++<temp1) cout << "*";

		temp1=i<(size/2+1) ? temp1-1 : temp1+1;
		temp2=i<(size/2+1) ? temp2+2 : temp2-2;
		cout << "\n";
	}
}

gistfile5.txt

/**************************************
국민대학교 컴퓨터공학부 20103324 김현우
문제 12 : 모래시계 출력하기
***************************************/


#include <iostream>
#include <fstream>
#include <cstdlib>

using namespace std;

void drawHourGlass(int size);

void main(void)
{
	ifstream inStream;
	int numTestCases;

	inStream.open("input.txt");
	if(inStream.fail())
	{
		cerr << "Input file opening failed\n";
		exit(1);
	}

	inStream >> numTestCases;

	for(int i=0; i<numTestCases; i++)
	{
		int sizeOfTriangle;
		inStream >> sizeOfTriangle;
		drawHourGlass(sizeOfTriangle);
	}

	inStream.close();
}

void drawHourGlass(int size)
{
	int temp1=0, temp2=size;

	for(int i=1; i<=size; i++)
	{
		int k=0;
		while(k++<temp1) cout << "-";
		k=0;
		while(k<temp2)
		{
			if(k++%2==1) cout << "+"; else cout << "*";
		}
		k=0;
		while(k++<temp1) cout << "-";

		temp1=i<(size/2+1) ? temp1+1 : temp1-1;
		temp2=i<(size/2+1) ? temp2-2 : temp2+2;
		cout << "\n";
	}
}