public static long Run(string input)
{
//input = _input
var joltages = InputUtils.SplitLinesIntoIntList(input);
var volt1 = 0;
var volt3 = 0;
joltages.Sort();
var prev = 0;
for (int i = 0; i < joltages.Count; i++)
{
if (joltages[i] - prev == 1)
{
volt1++;
}
else if (joltages[i] - prev == 3)
{
volt3++;
}
prev = joltages[i];
}
volt3++;
return(volt1 * volt3);
}
public static long Run(string input)
{
//input = _input;
var joltageIntList = InputUtils.SplitLinesIntoIntList(input);
joltageIntList.Sort();
joltageIntList.Reverse();
long combos = 0;
var joltageList = new List <Day10Joltage>();
for (int i = 0; i < joltageIntList.Count; i++)
{
joltageList.Add(new Day10Joltage {
Joltage = joltageIntList[i], Pos = i
});
}
var nextJoltages = GetValidNextJoltages(joltageList, 0);
foreach (var joltage in nextJoltages)
{
combos += GetCombinations(joltageList, joltage.Pos, 0);
}
return(combos);
}