private static void Part1()
{
var shop = new ItemsShop();
var weapons = shop.Weapons;
var armors = shop.Armors;
var rings = shop.Rings;
armors.Add(Item.CreateEmpty(ItemType.Armor));
rings.Add(Item.CreateEmpty(ItemType.Ring));
rings.Add(Item.CreateEmpty(ItemType.Ring));
const int myHitpoints = 100;
int enemyHitpoints;
int enemyDamage;
int enemyArmor;
ParseEnemy(out enemyHitpoints, out enemyDamage, out enemyArmor);
var minMoneyToWin = int.MaxValue;
for (var r1 = 0; r1 < rings.Count; r1++)
{
for (var r2 = 0; r2 < r1; r2++)
{
foreach (var weapon in weapons)
{
foreach (var armor in armors)
{
var items = new List<Item> {weapon, armor, shop.Rings[r1], shop.Rings[r2]};
var myDamage = items.Sum(x => x.Damage);
var myArmor = items.Sum(x => x.Armor);
var me = new Character(myHitpoints, myDamage, myArmor);
var enemy = new Character(enemyHitpoints, enemyDamage, enemyArmor);
if (Battle(me, enemy))
{
var cost = items.Sum(x => x.Price);
if (cost < minMoneyToWin)
{
minMoneyToWin = cost;
}
}
}
}
}
}
Console.WriteLine(minMoneyToWin);
}
private static bool Battle(Character me, Character enemy)
{
var myRoundsToDeath = (me.Hitpoints - 1)/Math.Max(enemy.Damage - me.Armor, 1);
var enemyRoundsToDeath = (enemy.Hitpoints - 1)/Math.Max(me.Damage - enemy.Armor, 1);
return myRoundsToDeath >= enemyRoundsToDeath;
}
