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Moved Day1 to Day1.cs and called it from Program.cs

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login000 2024-12-02 02:19:35 +10:30
parent f3d7d0649d
commit d3ec82e9f8
2 changed files with 77 additions and 61 deletions
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76
Advent24/Day1.cs 100644
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@ -0,0 +1,76 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Advent24
{
internal class Day1
{
public Day1()
{
string fileData = System.IO.File.ReadAllText(@"..\..\..\inputd1.txt");
var pairsArray = fileData.Split('\n');
var list1 = new SortedList<Int32, Int32>(pairsArray.Length);
var list2 = new SortedList<Int32, Int32>(pairsArray.Length);
foreach (var pair in pairsArray)
{
if (System.String.IsNullOrEmpty(pair)) continue;
// pairArray has 4 elements, and the middle two are blanks
// because there are 3 spaces between the two numbers
var pairArray = pair.Split(' ');
Int32 myInteger = System.Convert.ToInt32(pairArray[0]);
if (list1.TryGetValue(myInteger, out int value1)) list1[myInteger] = ++value1;
else list1.Add(myInteger, 1);
Console.WriteLine("{0:d} {1:d}", myInteger, list1[myInteger]);
myInteger = System.Convert.ToInt32(pairArray[3]);
if (list2.TryGetValue(myInteger, out int value2)) list2[myInteger] = ++value2;
else list2.Add(myInteger, 1);
Console.WriteLine("{0:d} {1:d}", myInteger, list2[myInteger]);
}
Int32 sumOfDifferences = 0;
Int32 i = 0, j = 0;
var list1Copy = new SortedList<Int32, Int32>(list1);
var list2Copy = new SortedList<Int32, Int32>(list2);
while (i < list1.Count && j < list2.Count)
{
Int32 value1 = list1.GetKeyAtIndex(i);
Int32 value2 = list2.GetKeyAtIndex(j);
if (value1 > value2) sumOfDifferences += (value1 - value2);
else sumOfDifferences += (value2 - value1);
list1[value1]--; list2[value2]--;
if (list1[value1] == 0) i++;
if (list2[value2] == 0) j++;
}
Console.WriteLine("{0:s} {1:d}", "Sum of differences = ", sumOfDifferences);
i = 0; Int32 similarityScore = 0;
while (i < list1Copy.Count)
{
Int32 value1 = list1Copy.GetKeyAtIndex(i);
list2Copy.TryGetValue(value1, out Int32 numberOfAppearancesInList2);
// default value of Int32 numberOfAppearancesInList2 is 0
similarityScore += value1 * numberOfAppearancesInList2;
list1Copy[value1]--;
if (list1Copy[value1] == 0) i++;
}
Console.WriteLine("{0:s} {1:d}", "Similarity score = ", similarityScore);
Console.ReadLine();
}
}
}

62
Advent24/Program.cs
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@ -7,67 +7,7 @@ namespace Advent24
{
static void Main(string[] args)
{
string fileData = System.IO.File.ReadAllText(@"..\..\..\inputd1.txt");
var pairsArray = fileData.Split('\n');
var list1 = new SortedList<Int32, Int32>(pairsArray.Length);
var list2 = new SortedList<Int32, Int32>(pairsArray.Length);
foreach(var pair in pairsArray)
{
if (System.String.IsNullOrEmpty(pair)) continue;
// pairArray has 4 elements, and the middle two are blanks
// because there are 3 spaces between the two numbers
var pairArray = pair.Split(' ');
Int32 myInteger = System.Convert.ToInt32(pairArray[0]);
if (list1.TryGetValue(myInteger, out int value1)) list1[myInteger] = ++value1;
else list1.Add(myInteger, 1);
Console.WriteLine("{0:d} {1:d}", myInteger, list1[myInteger]);
myInteger = System.Convert.ToInt32(pairArray[3]);
if (list2.TryGetValue(myInteger, out int value2)) list2[myInteger] = ++value2;
else list2.Add(myInteger, 1);
Console.WriteLine("{0:d} {1:d}", myInteger, list2[myInteger]);
}
Int32 sumOfDifferences = 0;
Int32 i = 0, j = 0;
var list1Copy = new SortedList<Int32, Int32>(list1);
var list2Copy = new SortedList<Int32, Int32>(list2);
while (i < list1.Count && j < list2.Count)
{
Int32 value1 = list1.GetKeyAtIndex(i);
Int32 value2 = list2.GetKeyAtIndex(j);
if (value1 > value2) sumOfDifferences += (value1 - value2);
else sumOfDifferences += (value2 - value1);
list1[value1]--; list2[value2]--;
if (list1[value1] == 0) i++;
if (list2[value2] == 0) j++;
}
Console.WriteLine("{0:s} {1:d}", "Sum of differences = ", sumOfDifferences);
i = 0; Int32 similarityScore = 0;
while (i < list1Copy.Count)
{
Int32 value1 = list1Copy.GetKeyAtIndex(i);
list2Copy.TryGetValue(value1, out Int32 numberOfAppearancesInList2);
// default value of Int32 numberOfAppearancesInList2 is 0
similarityScore += value1 * numberOfAppearancesInList2;
list1Copy[value1]--;
if (list1Copy[value1] == 0) i++;
}
Console.WriteLine("{0:s} {1:d}", "Similarity score = ", similarityScore);
Console.ReadLine();
_ = new Day1();
}
}
}