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Day02.cs
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Day02.cs
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using AoCHelper;
namespace AOC_2017;
class Day02 : BaseDay
{
public readonly string _input;
public Day02()
{
_input = File.ReadAllText(InputFilePath);
}
public override ValueTask<string> Solve_1()
{
long sum = 0;
foreach (string line in _input.Split('\n'))
{
int mn = int.MaxValue, mx = 0;
foreach (string n in line.Split('\t'))
{
int x = int.Parse(n);
if (x < mn) mn = x;
if (x > mx) mx = x;
}
sum += mx - mn;
}
return new(sum.ToString());
}
public override ValueTask<string> Solve_2()
{
long sum = 0;
foreach (string line in _input.Split('\n'))
{
List<int> l = new();
foreach (string n in line.Split('\t'))
{
l.Add(int.Parse(n));
}
l.Sort();
for (int i = 0; i < l.Count; ++i)
{
for (int j = i + 1; j < l.Count; ++j)
{
if (l[j] % l[i] == 0) sum += l[j] / l[i];
}
}
}
return new(sum.ToString());
}
}