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i have no idea what i'm doing
continuous-integration/drone/push Build is failing Details

This commit is contained in:
Ben Harris 2020-12-18 00:28:36 -05:00
parent e8e180a148
commit 4cc25659e1
2 changed files with 433 additions and 0 deletions
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62
aoc2020/Day18.cs Normal file
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using System;
using System.Collections.Generic;
namespace aoc2020
{
/// <summary>
/// Day 18: <see href="https://adventofcode.com/2020/day/18" />
/// </summary>
public sealed class Day18 : Day
{
public Day18() : base(18, "Operation Order")
{
}
public override string Part1()
{
foreach (var line in Input)
{
var spl = line.Split(' ', StringSplitOptions.TrimEntries);
var operands = new List<int>();
var operators = new List<Func<int, int, int>>();
foreach (var s in spl)
{
var parenCount = 0;
if (s.StartsWith('('))
{
parenCount++;
operands.Add(int.Parse(s[1..]));
}
else if (s.EndsWith(')'))
{
parenCount--;
operands.Add(int.Parse(s[0..^1]));
}
else if (int.TryParse(s, out var res))
{
operands.Add(res);
}
else
{
switch (s)
{
case "+":
operators.Add((a, b) => a + b);
break;
case "*":
operators.Add((a, b) => a * b);
break;
}
}
}
}
return "";
}
public override string Part2()
{
return "";
}
}
}

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