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Part 2

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Amatsugu
2023-12-04 18:04:22 -05:00
parent eeb5a3cf19
commit 9845727fc5
3 changed files with 34 additions and 1 deletions
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1
AdventOfCode/AdventOfCode.csproj
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@@ -47,6 +47,7 @@
<None Remove="problems\aoc2023\day3\sample.txt" />
<None Remove="problems\aoc2023\day3\sara.txt" />
<None Remove="problems\aoc2023\day4\input.txt" />
<None Remove="problems\aoc2023\day4\sample.txt" />
</ItemGroup>

28
AdventOfCode/Problems/AOC2023/Day4/Scratchcards.cs
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@@ -11,6 +11,7 @@ namespace AdventOfCode.Problems.AOC2023.Day4;
internal class Scratchcards : Problem<double, int>
{
private (int card, int[] win, int[] have)[] _cards = [];
private Dictionary<int, int> _cardCount = new ();
public override void CalculatePart1()
{
@@ -22,7 +23,32 @@ internal class Scratchcards : Problem<double, int>
public override void CalculatePart2()
{
throw new NotImplementedException();
Part2 = _cards.Length;
for (int i = 0; i < _cards.Length; i++)
{
var card = _cards[i];
var wins = card.have.Intersect(card.win).Count();
for (int j = 1; j <= wins; j++)
AddCards(card.card + j, GetCardCount(card.card));
Part2 += wins * GetCardCount(card.card);
//_cardCount[card.card] = 0;
}
}
private int GetCardCount(int card)
{
if(_cardCount.TryGetValue(card, out var count))
return count;
//_cardCount.Add(card, 1);
return 1;
}
private void AddCards(int card, int count)
{
if(_cardCount.ContainsKey(card))
_cardCount[card] += count;
else
_cardCount.Add(card, count + 1);
}
public override void LoadInput()

6
AdventOfCode/Problems/AOC2023/Day4/sample.txt Normal file
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@@ -0,0 +1,6 @@
Card 1: 41 48 83 86 17 | 83 86 6 31 17 9 48 53
Card 2: 13 32 20 16 61 | 61 30 68 82 17 32 24 19
Card 3: 1 21 53 59 44 | 69 82 63 72 16 21 14 1
Card 4: 41 92 73 84 69 | 59 84 76 51 58 5 54 83
Card 5: 87 83 26 28 32 | 88 30 70 12 93 22 82 36
Card 6: 31 18 13 56 72 | 74 77 10 23 35 67 36 11