[백준] 1011번 : Fly me to the Alpha Centauri - C#

https://www.acmicpc.net/problem/1011

using System;

class Program
{
    static void Main() {
        string s=Console.ReadLine();
        int n=int.Parse(s);
        for(int i=0;i<n;i++){
            string[] s1=Console.ReadLine().Split(' ');
            int x=int.Parse(s1[0]);
            int y=int.Parse(s1[1]);
            int k=1;
            int count=0;
            
            while(x<y){
                x+=k;
                count++;
                if(x>=y) break;
                y-=k;
                count++;
                k++;
                
            }
            Console.WriteLine(count);
        }
    }
}