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2023 day 3 part 1
continuous-integration/drone/push Build is failing Details

This commit is contained in:
Ben Harris 2023-12-03 01:30:00 -05:00
parent f329cc9e61
commit dd80a3dddc
5 changed files with 205 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
AOC.Common/Day.cs
View File

@ -8,7 +8,7 @@ public abstract class Day(int year, int day, string puzzleName)
public int DayNumber { get; } = day;
public string PuzzleName { get; } = puzzleName;
protected string[] Input => File.ReadAllLines(FileName);
protected IEnumerable<string> Input => File.ReadLines(FileName);
public string FileName =>
Path.Combine(AppDomain.CurrentDomain.BaseDirectory,

2
AOC.Test/Test2023.cs
View File

@ -8,12 +8,14 @@ public class Test2023
[DataTestMethod]
[DataRow(typeof(Day01), "54331", "54518")]
[DataRow(typeof(Day02), "2476", "54911")]
[DataRow(typeof(Day03), "522726", "")]
public void CheckAllDays(Type dayType, string part1, string part2) =>
Common.CheckDay(dayType, part1, part2);
[DataTestMethod]
[DataRow(typeof(Day01), "142", "142")] // unfortunately p2 example is different
[DataRow(typeof(Day02), "8", "2286")]
[DataRow(typeof(Day03), "4361", "467835")]
public void CheckTestInputs(Type dayType, string part1, string part2) =>
Common.CheckDay(dayType, part1, part2, true);
}

52
AOC2023/Day03.cs Normal file
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@ -0,0 +1,52 @@
namespace AOC2023;
/// <summary>
/// Day 3: <a href="https://adventofcode.com/2023/day/ 3"/>
/// </summary>
public sealed partial class Day03() : Day(2023, 3, "Gear Ratios")
{
[GeneratedRegex(@"\d+")]
private static partial Regex DigitsRegex();
private List<string> _input;
public override void ProcessInput()
{
_input = Input.ToList();
}
public override object Part1()
{
var sum = 0;
for (var i = 0; i < _input.Count; i++)
{
var numbers = DigitsRegex()
.Matches(_input[i])
.Select(f => (index: f.Index, value: int.Parse(f.Value), length: f.Length));
foreach (var num in numbers)
{
bool found = false;
for (var y = i - 1; y <= i + 1; y++)
{
if (found) break;
if (y < 0 || y >= _input.Count) continue;
for (var x = num.index - 1; x <= num.index + num.length; x++)
{
if (found) break;
if (x < 0 || x >= _input[i].Length) continue;
var c = _input[y][x];
if (c == '.' || char.IsDigit(c)) continue;
sum += num.value;
found = true;
}
}
}
}
return sum;
}
}

140
AOC2023/input2023/day03.in Normal file
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@ -0,0 +1,140 @@
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.......................................261......807.261.............................42......................................................

10
AOC2023/input2023/test03.in Normal file
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@ -0,0 +1,10 @@
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