2016: Day 2 completed

bmic86 · Jan 18, 2023 · 54d3e81 · 54d3e81
1 parent 6239b62
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diff --git a/AdventOfCode/Year2016/Day02.cs b/AdventOfCode/Year2016/Day02.cs
@@ -0,0  1,134 @@
 using AoCHelper;
 
 namespace AdventOfCode.Year2016
 {
     public class Day02 : BaseDay
     {
         private readonly string[] _instructions;
 
         public Day02()
             => _instructions = File.ReadAllLines(InputFilePath);
 
         public override ValueTask<string> Solve_1()
             => new(FindBathroomCode(GetKeyCodeForSimpleKeypad));
 
         public override ValueTask<string> Solve_2()
             => new(FindBathroomCode(GetKeyCodeForComplexKeypad));
 
         private string FindBathroomCode(Func<int, string, int> getKeyCode)
         {
             List<string> keyCodes = new();
 
             int keyCode = 5;
             foreach (var instruction in _instructions)
             {
                 keyCode = getKeyCode(keyCode, instruction);
                 keyCodes.Add($"{keyCode:X}");
             }
 
             return string.Concat(keyCodes);
         }
 
         private static int GetKeyCodeForSimpleKeypad(int currentKeyCode, string instruction)
         {
             foreach (char c in instruction)
             {
                 currentKeyCode = c switch
                 {
                     'U' => SimpleKeypadMoveUp(currentKeyCode),
                     'D' => SimpleKeypadMoveDown(currentKeyCode),
                     'L' => SimpleKeypadMoveLeft(currentKeyCode),
                     'R' => SimpleKeypadMoveRight(currentKeyCode),
                     _ => throw new InvalidOperationException($"Invalid instruction code `{c}`"),
                 };
             }
 
             return currentKeyCode;
         }
 
         private static int SimpleKeypadMoveUp(int keyCode)
         {
             int newKeyCode = keyCode - 3;
             return (newKeyCode > 0) ? newKeyCode : keyCode;
         }
 
         private static int SimpleKeypadMoveDown(int keyCode)
         {
             int newKeyCode = keyCode   3;
             return (newKeyCode <= 9) ? newKeyCode : keyCode;
         }
 
         private static int SimpleKeypadMoveLeft(int keyCode)
             => (keyCode % 3 != 1) ? keyCode - 1 : keyCode;
 
         private static int SimpleKeypadMoveRight(int keyCode)
             => (keyCode % 3 != 0) ? keyCode   1 : keyCode;
 
         private static int GetKeyCodeForComplexKeypad(int currentKeyCode, string instruction)
         {
             foreach (char c in instruction)
             {
                 currentKeyCode = c switch
                 {
                     'U' => ComplexKeypadMoveUp(currentKeyCode),
                     'D' => ComplexKeypadMoveDown(currentKeyCode),
                     'L' => ComplexKeypadMoveLeft(currentKeyCode),
                     'R' => ComplexKeypadMoveRight(currentKeyCode),
                     _ => throw new InvalidOperationException($"Invalid instruction code `{c}`"),
                 };
             }
 
             return currentKeyCode;
         }
 
         private static int ComplexKeypadMoveUp(int keyCode)
         {
             if (keyCode == 5 || keyCode == 9)
             {
                 return keyCode;
             }
 
             int step = (keyCode == 0xD || keyCode == 3) ? 2 : 4;
             int newKeyCode = keyCode - step;
             return (newKeyCode >= 1) ? newKeyCode : keyCode;
         }
 
         private static int ComplexKeypadMoveDown(int keyCode)
         {
             if (keyCode == 5 || keyCode == 9)
             {
                 return keyCode;
             }
 
             int step = (keyCode == 0xB || keyCode == 1) ? 2 : 4;
             int newKeyCode = keyCode   step;
             return (newKeyCode <= 0xD) ? newKeyCode : keyCode;
         }
 
         private static int ComplexKeypadMoveLeft(int keyCode)
         {
             if (keyCode != 9 && IsEdgeKey(keyCode))
             {
                 return keyCode;
             }
 
             int newKeyCode = keyCode - 1;
             return (newKeyCode == 5 || !IsEdgeKey(newKeyCode)) ? newKeyCode : keyCode;
         }
 
         private static int ComplexKeypadMoveRight(int keyCode)
         {
             if (keyCode != 5 && IsEdgeKey(keyCode))
             {
                 return keyCode;
             }
 
             int newKeyCode = keyCode   1;
             return (newKeyCode == 9 || !IsEdgeKey(newKeyCode)) ? newKeyCode : keyCode;
         }
 
         // Returns true for keys: 1, 5, 9 and D (0xD == 13).
         private static bool IsEdgeKey(int keyCode)
             => keyCode % 4 == 1;
     }
 }
diff --git a/AdventOfCode/Year2016/Inputs/02.txt b/AdventOfCode/Year2016/Inputs/02.txt
@@ -0,0  1,5 @@
 DDDURLURURUDLDURRURULLRRDULRRLRLRURDLRRDUDRUDLRDUUDRRUDLLLURLUURLRURURLRLUDDURUULDURDRUUDLLDDDRLDUULLUDURRLUULUULDLDDULRLDLURURUULRURDULLLURLDRDULLULRRRLRLRULLULRULUUULRLLURURDLLRURRUUUDURRDLURUURDDLRRLUURLRRULURRDDRDULLLDRDDDDURURLLULDDULLRLDRLRRDLLURLRRUDDDRDLLRUDLLLLRLLRUDDLUUDRLRRRDRLRDLRRULRUUDUUDULLRLUDLLDDLLDLUDRURLULDLRDDLDRUDLDDLDDDRLLDUURRUUDLLULLRLDLUURRLLDRDLRRRRUUUURLUUUULRRUDDUDDRLDDURLRLRLLRRUDRDLRLDRRRRRRUDDURUUUUDDUDUDU
 RLULUULRDDRLULRDDLRDUURLRUDDDUULUUUDDRDRRRLDUURDURDRLLLRDDRLURLDRRDLRLUURULUURDRRULRULDULDLRRDDRLDRUDUDDUDDRULURLULUDRDUDDDULRRRURLRRDLRDLDLLRLUULURLDRURRRLLURRRRRLLULRRRDDLRLDDUULDLLRDDRLLUUDRURLRULULRLRUULUUUUUDRURLURLDDUDDLRDDLDRRLDLURULUUDRDLULLURDLLLRRDRURUDDURRLURRDURURDLRUDRULUULLDRLRRDRLDDUDRDLLRURURLUDUURUULDURUDULRLRDLDURRLLDRDUDRUDDRLRURUDDLRRDLLLDULRRDRDRRRLURLDLURRDULDURUUUDURLDLRURRDRULLDDLLLRUULLLLURRRLLLDRRUDDDLURLRRRDRLRDLUUUDDRULLUULDURLDUUURUDRURUDRDLRRLDRURRLRDDLLLULUDDUULDURLRUDRDDD
 RDDRUDLRLDDDRLRRLRRLUULDRLRUUURULRRLUURLLLRLULDDLDLRLULULUUDDDRLLLUDLLRUDURUDDLLDUDLURRULLRDLDURULRLDRLDLDRDDRUDRUULLLLRULULLLDDDULUUDUUDDLDRLRRDLRLURRLLDRLDLDLULRLRDLDLRLUULLDLULRRRDDRUULDUDLUUUUDUDRLUURDURRULLDRURUDURDUULRRULUULULRLDRLRLLRRRLULURLUDULLDRLDRDRULLUUUDLDUUUDLRDULRDDDDDDDDLLRDULLUDRDDRURUDDLURRUULUURURDUDLLRRRRDUDLURLLURURLRDLDUUDRURULRDURDLDRUDLRRLDLDULRRUDRDUUDRLURUURLDLUDLLRDDRDU
 LLDDDDLUDLLDUDURRURLLLLRLRRLDULLURULDULDLDLLDRRDLUDRULLRUUURDRLLURDDLLUDDLRLLRDDLULRLDDRURLUDRDULLRUDDLUURULUUURURLRULRLDLDDLRDLDLLRUURDLUDRRRDDRDRLLUDDRLDRLLLRULRDLLRLRRDDLDRDDDUDUDLUULDLDUDDLRLDUULRULDLDULDDRRLUUURUUUDLRDRULDRRLLURRRDUDULDUDUDULLULLULULURLLRRLDULDULDLRDDRRLRDRLDRLUDLLLUULLRLLRLDRDDRUDDRLLDDLRULLLULRDDDLLLDRDLRULDDDLULURDULRLDRLULDDLRUDDUDLDDDUDRDRULULDDLDLRRDURLLRLLDDURRLRRULLURLRUDDLUURULULURLRUDLLLUDDURRLURLLRLLRRLDULRRUDURLLDDRLDLRRLULUULRRUURRRDULRLRLRDDRDULULUUDULLLLURULURRUDRLL
 UULLULRUULUUUUDDRULLRLDDLRLDDLULURDDLULURDRULUURDLLUDDLDRLUDLLRUURRUDRLDRDDRRLLRULDLLRUUULLLDLDDULDRLRURLDRDUURLURDRUURUULURLRLRRURLDDDLLDDLDDDULRUDLURULLDDRLDLUDURLLLLLRULRRLLUDRUURLLURRLLRDRLLLRRDDDRRRDLRDRDUDDRLLRRDRLRLDDDLURUUUUULDULDRRRRLUDRLRDRUDUDDRULDULULDRUUDUULLUDULRLRRURDLDDUDDRDULLUURLDRDLDDUURULRDLUDDLDURUDRRRDUDRRDRLRLULDRDRLRLRRUDLLLDDDRURDRLRUDRRDDLDRRLRRDLUURLRDRRUDRRDLDDDLRDDLRDUUURRRUULLDDDLLRLDRRLLDDRLRRRLUDLRURULLDULLLUDLDLRLLDDRDRUDLRRDDLUU
diff --git a/AdventOfCode/Year2016/Year2016.csproj b/AdventOfCode/Year2016/Year2016.csproj
@@ -22,6  22,9 @@
     <None Update="Inputs\01.txt">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
     <None Update="Inputs\02.txt">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
   </ItemGroup>
 
 </Project>