알고리즘 문제연습4

# 알고리즘 문제연습4

## 16진수 구구단 출력 (%x)

• 16진수 구구단 출력

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
    	Scanner scanner = new Scanner(System.in);
        
        int num = scanner.nextInt(16);
        
        for ( int i = 1; i <= 15; i++ ) {
        	System.out.format("%X+%X=%X\n", num, i, num*i);
        }
        
    }
}

 

## 빛 섞어 색 만들기 (BufferedWriter, OutputStreamWriter, IOException)

• 빛 섞어 색 만들기

import java.util.Scanner;
import java.io.BufferedWriter;
import java.io.OutputStreamWriter;
import java.io.IOException;

public class Main {
	public static void main(String[] args) throws IOException {
    	Scanner scanner = new Scanner(System.in);
        
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = scanner.nextInt();
        
        BufferedWriter bf = new BufferedWriter(new OutputStreamWriter(System.out));
        
        for ( int i = 0; i < a; i++ ) {
        	for ( int k = 0; k < b; k++ ) {
            	for ( int l = 0; l < c; l++ ) {
                	String st = i + " " + k + " " + l;
                    bf.write(st + "\n");
                }
            }
        }
        
        bf.write(Integer.toString(a*b*c));
        bf.close();
        
    }
}