2022 begins.

2022/1/main.cpp

@@ -0,0 +1,57 @@
+#include <algorithm>
+#include <fstream>
+#include <iostream>
+#include <vector>
+
+int main()
+{
+	std::ifstream ifs("data.txt");
+	if(!ifs.is_open())
+	{
+		std::cerr << "Couldn't open file." << std::endl;
+		return -1;
+	}
+
+	static bool last_line_blank = false;
+
+	std::vector<long> numbers;
+	long total = 0;
+	long most = 0;
+	for(std::string line; std::getline(ifs, line); )
+	{
+		if(line == "")
+		{
+			if(!last_line_blank)
+			{
+				numbers.push_back(total);
+				if(total > most)
+					most = total;
+				total = 0;
+			}
+			last_line_blank = true;
+		}
+		else
+		{
+			last_line_blank = false;
+			total += std::atoi(line.c_str());
+		}
+	}
+
+	std::cout << "Most: " << most << std::endl;
+
+	std::sort(numbers.begin(), numbers.end());
+
+	if(numbers.size())
+	{
+		int three = 3;
+		long total_total = 0;
+		for(int i = numbers.size() - 1; i >= 0; i--)
+		{
+			if(three-- > 0)
+				total_total += numbers[i];
+		}
+		std::cout << "Top 3: " << total_total << std::endl;
+	}
+
+	return 0;
+}

2022/1/main.rs

@@ -0,0 +1,38 @@
+use std::fs;
+
+fn main()
+{
+	let contents = fs::read_to_string("data.txt")
+		.expect("Could not find data.txt.");
+
+	let mut numbers = Vec::new();
+	let mut total = 0;
+	let mut max = 0;
+	for line in contents.split('\n')
+	{
+		if line == ""
+		{
+			if total > max
+			{
+				max = total;
+			}
+			numbers.push(total);
+			total = 0;
+		}
+		else
+		{
+			let i = line.parse::<i32>().unwrap();
+			total += i;
+		}
+	}
+
+	println!("Max: {max}");
+
+	numbers.sort();
+	let mut top_three = 0;
+	for amt in &numbers[numbers.len() - 3..numbers.len()]
+	{
+		top_three += amt;
+	}
+	println!("Top Three: {top_three}");
+}