Задание про зелье и подземелья

using System;
using System.Linq;
static class Program
{
    static (string name, int hp, int damage, int floor)[] enemies = new []
    {
        ("leech", 300, 149, 27),
        ("necromancer", 100, 72, 18),
        ("vampire", 50, 35, 11),
        ("gnoll", 30, 17, 5),
        ("rat", 10, 10, 1)
    };
 
    static void Main()
    {
        const int max_hero_hp = 1000;
        const int potion_cost = 19;
 
        int last_exp = 1;
        int next_exp = 1;
 
        int m = 9;
        int n = 8;
        int potions_used = 0;
        int hero_hp = max_hero_hp;
        int hero_damage = 10;
        int hero_exp = 0;
        var hero_name = "Dhwuwj";
 
        for (int floor = 1; floor <= 20212022; floor++)
        {
            var enemy = enemies.First(e => floor % e.floor == 0);
            //Console.WriteLine($"floor: {floor}");
            //Console.WriteLine($"enemy: {enemy.name, -12} health: {enemy.hp, -10} damage: {enemy.damage}");
            //Console.WriteLine($"hero : {hero_name,  -12} health: {hero_hp, -10} damage: {hero_damage}");
 
            while (enemy.hp > 0)
            {
                if (enemy.damage >= hero_hp)
                {
                    potions_used++;
                    hero_hp = max_hero_hp;
                    //Console.WriteLine($"\tpotion used. total uses: {potions_used}");
                }
 
                if (enemy.damage >= hero_hp) 
                    throw new Exception("hero died");
 
                hero_hp -= enemy.damage;
                enemy.hp -= hero_damage;
                //Console.WriteLine($"\thit");
            }
 
            hero_exp += n;
            //Console.WriteLine($"\t+{m} exp\thero exp: {hero_exp}");
            while (hero_exp >= next_exp)
            {
                hero_exp -= next_exp;
                hero_damage += m;
                (last_exp, next_exp) = (next_exp, last_exp + next_exp);
                //Console.WriteLine($"\tlvl up (next: {next_exp}), hero exp: {hero_exp}, hero damage: {hero_damage}");
            }
 
            //Console.ReadLine();
        }
 
        Console.WriteLine($"you have to use {potions_used} potions");
        Console.WriteLine($"you have to spend {potions_used * potion_cost} gold");
        Console.WriteLine("done");
        Console.ReadLine();
    }
}