[1일 1문제] 백준 단계별로 풀어보기 6-10번 (11.06~11.10)

11.06

빠른 A+B

package baekjoon;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;

public class java_1106 {
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        
        int t = Integer.parseInt(br.readLine());
        
        for(int i=0; i<t; i++) {
            StringTokenizer st = new StringTokenizer(br.readLine());
            int a = Integer.parseInt(st.nextToken());
            int b = Integer.parseInt(st.nextToken());
            bw.write(a+b + "\n");
        }
        bw.flush();
	}
}

 

 

11.07

A+C - 7

package baekjoon;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;

public class java_1107 {
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        
        int t = Integer.parseInt(br.readLine());
        
        for(int i=0; i<t; i++) {
            StringTokenizer st = new StringTokenizer(br.readLine());
            int a = Integer.parseInt(st.nextToken());
            int b = Integer.parseInt(st.nextToken());
            bw.write("Case #" + (i+1)+ ": " + (a+b) + "\n");
        }
        
        bw.flush();
  
	}
}

 

 

11.08

A + B - 8

package baekjoon;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;

public class java_1108 {
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        
        int t = Integer.parseInt(br.readLine());
        
        for(int i=0; i<t; i++) {
            StringTokenizer st = new StringTokenizer(br.readLine());
            int a = Integer.parseInt(st.nextToken());
            int b = Integer.parseInt(st.nextToken());
            bw.write("Case #" + (i+1)+ ": " + a + " + " + b + " = " + (a+b) + "\n");
        }
        
        bw.flush();
  
	}
}

 

 

11.09

별 찍기 - 1

package baekjoon;

import java.util.Scanner;

public class java_1109 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		
		for(int i=1; i<=N; i++) {
			for(int j=1; j<=i; j++) {
				System.out.print("*");
			}
			System.out.println();
		}
		sc.close();
	}
}

 

 

11.10

별 찍기 - 2

package baekjoon;

import java.util.Scanner;

public class java_1110 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		
		for(int i=1; i<=N; i++) {
			for(int j=N-1; j>=i;j--) {
				System.out.print(" ");
			}
			
			for(int j=1; j<=i; j++) {
				System.out.print("*");
			}
			System.out.println();
		}
		sc.close();
	}
}