[백준] 1065번 : 한수 - Java(자바)

https://www.acmicpc.net/problem/1065

import java.util.Scanner;
public class Main {
    public static void main(String args[]) {
        Scanner s=new Scanner(System.in);
        int x=s.nextInt();
        int count=99;
        if(x<100) System.out.print(x);
        else{
            for(int i=100;i<=x;i++){
                int a=i%10;
                int b=(i/10)%10;
                int c=(i/10)/10;
                if(c-b==b-a) count++;
        }
        System.out.print(count);
        }
    }
}