CodeUp_Java 기초 100제 - [기초-종합] 87~92

87 : 여기까지! 이제 그만~

//자바코드
import java.util.Scanner;

public class Main{
	public static void main (String[] args){
    	Scanner sc = new Scanner(System.in);

		int num = sc.nextInt();
        sc.close();
        
        int sum = 0;
        int i = 0;
        
       	while(sum<num){
        	i++;
            sum += i;
        }
        System.out.println(sum);
    }
}

---

88 : 3의 배수는 통과?

//자바코드
import java.util.Scanner;

public class Main{
	public static void main (String[] args){
    	Scanner sc = new Scanner(System.in);

		int num = sc.nextInt();
        sc.close();
        
        for(int i = 0; i<=num; i++){
        	if(i%3==0)
            	System.out.print("");
            } else{
            	System.out.print(i + " ");
            }
        }
    }
}

---

89 : 수 나열하기1

//자바코드
import java.util.Scanner;

public class Main{
	public static void main (String[] args){
    	Scanner sc = new Scanner(System.in);

		int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int count = 1;
        sc.close();
        
       	while(count != c){
        	a += b;
            count++;
        }
        System.out.println(a);
    }
}

---

90 : 수 나열하기2

//자바코드
import java.util.Scanner;

public class Main{
	public static void main (String[] args){
    	Scanner sc = new Scanner(System.in);

		int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        sc.close();
        
        for(int i=1;i<c;i++){
        	a *= b;
        }
        System.out.println(a);
    }
}

---

91 : 수 나열하기3

//자바코드
import java.util.Scanner;

public class Main{
	public static void main (String[] args){
    	Scanner sc = new Scanner(System.in);

		int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int d = sc.nextInt();
        sc.close();
        
        for(int i=1;i<d;i++){
        	a = a*b+c;
        }
        System.out.println(a);
    }
}

---

92 : 함께 문제 푸는 날

//자바코드
import java.util.Scanner;

public class Main{
	public static void main (String[] args){
    	Scanner sc = new Scanner(System.in);

		int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        sc.close();
        
        int count = 1;
        
        while(count%a !=0 || count%b !=0 || count%c !=0){
        	count++;
        }
        System.out.println(count);
    }
}