백준 1단계(입출력과 사칙연산)

2557번

public class _2557 {
    public static void main(String[] args) {
        System.out.println("Hello World!");
    }
}

 

 

10172번

public class Main {
    public static void main(String[] args) {
        System.out.println("|\\_/|");
        System.out.println("|q p|   /}");
        System.out.println("( 0 )\"\"\"\\");
        System.out.println("|\"^\"`    |");
        System.out.println("||_/=\\\\__|");
    }
}
 

 

1000번

import java.io.*;
import java.util.*;
 
public class Main{
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        
        st = new StringTokenizer(br.readLine()," ");
        
        int A = Integer.parseInt(st.nextToken());
        int B = Integer.parseInt(st.nextToken());
        
        System.out.println(A + B);
        
    }
}
 

 

 

1001번

import java.io.*;
import java.util.*;
 
public class Main{
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        
        st = new StringTokenizer(br.readLine()," ");
        
        int A = Integer.parseInt(st.nextToken());
        int B = Integer.parseInt(st.nextToken());
        
        System.out.println(A - B);
        
    }
}

 

 

10998번

import java.io.*;
import java.util.*;
 
public class Main{
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        
        st = new StringTokenizer(br.readLine()," ");
        
        int A = Integer.parseInt(st.nextToken());
        int B = Integer.parseInt(st.nextToken());
        
        System.out.println(A * B);
        
    }
}
 

 

 

1008번

import java.io.*;
import java.util.*;
 
public class Main{
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        
        st = new StringTokenizer(br.readLine()," ");
        
        double A = Double.parseDouble(st.nextToken());
        double B = Double.parseDouble(st.nextToken());
        
        System.out.println(A / B);
        
    }
}
 

 

 

10869번

import java.io.*;
import java.util.*;
 
public class Main{
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        
        st = new StringTokenizer(br.readLine()," ");
        
        int A = Integer.parseInt(st.nextToken());
        int B = Integer.parseInt(st.nextToken());
        
        System.out.println(A + B);
        System.out.println(A - B);
        System.out.println(A * B);
        System.out.println(A / B);
        System.out.println(A % B);
        
    }
}
 

 

 

10430번

import java.io.*;
import java.util.*;
 
public class Main{
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        
        st = new StringTokenizer(br.readLine()," ");
        
        int A = Integer.parseInt(st.nextToken());
        int B = Integer.parseInt(st.nextToken());
        int C = Integer.parseInt(st.nextToken());
        
        System.out.println((A+B)%C);
        System.out.println(((A%C) + (B%C))%C);
        System.out.println((A*B)%C);
        System.out.println(((A%C) * (B%C))%C);
        
    }
}
 

 

 

2588번

import java.io.*;
import java.util.*;
 
public class Main{
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringBuilder sb = new StringBuilder();
        
        int A = Integer.parseInt(br.readLine());
        int B = Integer.parseInt(br.readLine());
        int result = A * B;
        
        while(B > 0) {
            sb.append(A * (B % 10) + "\n");
            B /= 10;
        }
        
        sb.append(result);
        
        System.out.println(sb);
    }
}