projects/AdventOfCode
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Completed day 2

Browse Source
This commit is contained in:
Rob Stoffelen 2024-12-02 09:16:36 +01:00
parent 2c0ba40a24
commit 9e3c218ffe
1 changed files with 35 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

99
AdventOfCode.Solutions/2024/Day 02/Day02.cs
View File

@ -18,76 +18,47 @@ namespace AdventOfCode.Solutions._2024
} }
//2 //2
// //230
public async Task<string> GetSolutionPart1() public async Task<string> GetSolutionPart1()
{ => (await _inputReader.ReadAsArrayString())
//_inputReader.SetSampleInput(true); .Select(ParselineToReports)
string[] data = await _inputReader.ReadAsArrayString(); .Where(reports => AreReportsSave(reports, false))
int save = data.Length; .Count()
foreach (string line in data) .ToString();
{
int[] intData = line.Split(' ').Select(int.Parse).ToArray();
bool isIncrease = intData[1] < intData[0];
for (int index = 1; index < intData.Length; index++)
{
int trueDiff = intData[index - 1] - intData[index];
int diff = Math.Abs(trueDiff);
if (diff < 1 || diff > 3)
{
save--;
break;
}
if (isIncrease && trueDiff < 0) //4
{ //301
save--; public async Task<string> GetSolutionPart2() => (await _inputReader.ReadAsArrayString())
break; .Select(ParselineToReports)
} .Where(reports => AreReportsSave(reports, true))
else if (!isIncrease && trueDiff > 0) .Count()
{ .ToString();
save--;
break; private static bool AreReportsSave(int[] reports, bool tolarance = false)
} {
bool isIncrease = reports[1] < reports[0];
for (int index = 1; index < reports.Length; index++)
{
int trueDiff = reports[index - 1] - reports[index];
int diff = Math.Abs(trueDiff);
if (diff < 1 || diff > 3)
{
return tolarance && HasSafeCombo(reports);
}
if ((isIncrease && trueDiff < 0) || (!isIncrease && trueDiff > 0))
{
return tolarance && HasSafeCombo(reports);
} }
} }
return save.ToString(); return true;
} }
// private static bool HasSafeCombo(int[] reports)
// => reports.Select((_, i) => SkipReport(reports, i)).Any(reports => AreReportsSave(reports));
public async Task<string> GetSolutionPart2()
{
string[] data = await _inputReader.ReadAsArrayString();
int save = data.Length;
foreach (string line in data)
{
int[] intData = line.Split(' ').Select(int.Parse).ToArray();
bool isIncrease = intData[1] < intData[0];
for (int index = 1; index < intData.Length; index++)
{
int trueDiff = intData[index - 1] - intData[index];
int diff = Math.Abs(trueDiff);
if (diff < 1 || diff > 3)
{
save--;
break;
}
if (isIncrease && trueDiff < 0) private static int[] SkipReport(int[] reports, int index) => reports.Where((_, i) => i != index).ToArray();
{ private static int[] ParselineToReports(string line) => line.Split(' ').Select(int.Parse).ToArray();
save--;
break;
}
else if (!isIncrease && trueDiff > 0)
{
save--;
break;
}
}
}
return save.ToString();
}
} }
} }