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-rw-r--r--.gitignore3
-rw-r--r--2022/day1.rb48
-rw-r--r--2022/day1.txt2244
-rw-r--r--2022/day2-test.txt3
-rw-r--r--2022/day2.rb116
-rw-r--r--2022/day2.txt2500
-rw-r--r--2022/day3.rb63
-rw-r--r--2022/day3.txt300
-rw-r--r--2022/day4-test.txt6
-rw-r--r--2022/day4.rb36
-rw-r--r--2022/day4.txt1000
-rw-r--r--2022/day5.rb43
-rw-r--r--2022/utils.rb10
-rw-r--r--2023/day-01/Cargo.lock7
-rw-r--r--2023/day-01/Cargo.toml8
-rw-r--r--2023/day-01/src/bin/input.txt1000
-rw-r--r--2023/day-01/src/bin/part1.rs44
-rw-r--r--2023/day-01/src/bin/part2.rs86
18 files changed, 7516 insertions, 1 deletions
diff --git a/.gitignore b/.gitignore
index 546cb48..8f39b4e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-.precomp \ No newline at end of file
+.precomp
+target/ \ No newline at end of file
diff --git a/2022/day1.rb b/2022/day1.rb
new file mode 100644
index 0000000..f7a7c24
--- /dev/null
+++ b/2022/day1.rb
@@ -0,0 +1,48 @@
+
+
+TEST_S = <<-TEST
+1000
+2000
+3000
+
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000
+TEST
+
+def elves_food(input_str)
+ return input_str.split(/^$/).map do
+ |elf_rations|
+ elf_rations.strip.split("\n").map(&:to_i)
+ end
+end
+
+def calories_by_elf(input_str)
+ elves_food(input_str).map(&:sum)
+end
+
+def max_calories(input_str)
+ calories_by_elf(input_str).max
+end
+
+def top_3_calories(input_str)
+ calories_by_elf(input_str).sort.reverse.take(3).sum
+end
+
+def day1
+ File.open('day1.txt') do |f|
+ input_str = f.read
+ puts "part1: #{max_calories(input_str)}"
+ puts "part2: #{top_3_calories(input_str)}"
+ end
+end
+
+day1()
+#puts elves_food(TEST_S)
diff --git a/2022/day1.txt b/2022/day1.txt
new file mode 100644
index 0000000..29d80bf
--- /dev/null
+++ b/2022/day1.txt
@@ -0,0 +1,2244 @@
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diff --git a/2022/day2-test.txt b/2022/day2-test.txt
new file mode 100644
index 0000000..db60e36
--- /dev/null
+++ b/2022/day2-test.txt
@@ -0,0 +1,3 @@
+A Y
+B X
+C Z
diff --git a/2022/day2.rb b/2022/day2.rb
new file mode 100644
index 0000000..bc4ade5
--- /dev/null
+++ b/2022/day2.rb
@@ -0,0 +1,116 @@
+TEST_S = <<-EOF
+A Y
+B X
+C Z
+EOF
+
+def score(picked_item, outcome)
+ fail "Wrong picked item '#{picked_item}'" unless picked_item
+ outcome_score = case outcome
+ when :win
+ 6
+ when :draw
+ 3
+ when :lose
+ 0
+ end
+ picked_score = case picked_item
+ when /A|X/
+ 1
+ when /B|Y/
+ 2
+ when /C|Z/
+ 3
+ end
+ #puts "#{outcome_score} + #{picked_score}"
+ return outcome_score + picked_score
+end
+
+def guessed_strategy(line)
+ outcome_map = {
+ 'A X' => :draw,
+ 'A Y' => :win,
+ 'A Z' => :lose,
+ 'B X' => :lose,
+ 'B Y' => :draw,
+ 'B Z' => :win,
+ 'C X' => :win,
+ 'C Y' => :lose,
+ 'C Z' => :draw
+ }
+ return outcome_map[line]
+end
+
+def correct_strategy(item1, item2)
+ return :win if item2 == 'Z'
+ return :draw if item2 == 'Y'
+ return :lose if item2 == 'X'
+end
+
+def what_to_choose(oponent_shape, outcome)
+ case outcome
+ when :draw
+ return oponent_shape
+ when :win
+ case oponent_shape
+ when 'A'
+ return 'B'
+ when 'B'
+ return 'C'
+ when 'C'
+ return 'A'
+ else
+ fail "Don't know this shape '#{oponent_shape}'"
+ end
+ when :lose
+ case oponent_shape
+ when 'A'
+ return 'C'
+ when 'B'
+ return 'A'
+ when 'C'
+ return 'B'
+ else
+ fail "Don't know this shape '#{oponent_shape}'"
+ end
+ else
+ fail "Don't know this outcome '#{outcome}'"
+ end
+end
+
+def part1(filename)
+ score = 0
+ File.open(filename) do |f|
+ scores = f.readlines.map do |line|
+ item1, item2 = line.chomp.split()
+ outcome = guessed_strategy(line.chomp)
+ score(item2, outcome)
+ end
+
+ score = scores.sum
+ end
+ score
+end
+
+def part2(filename)
+ score = 0
+ File.open(filename) do |f|
+ scores = f.readlines.map do |line|
+ item1, item2 = line.chomp.split()
+ outcome = correct_strategy(item1, item2)
+ shape = what_to_choose(item1, outcome)
+ score(shape, outcome)
+ end
+
+ score = scores.sum
+ end
+ score
+end
+
+#puts part1('./day2-test.txt')
+#puts part1('./day2.txt')
+
+
+puts 'Part2'
+puts part2('./day2-test.txt')
+puts part2('./day2.txt')
diff --git a/2022/day2.txt b/2022/day2.txt
new file mode 100644
index 0000000..3914035
--- /dev/null
+++ b/2022/day2.txt
@@ -0,0 +1,2500 @@
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diff --git a/2022/day3.rb b/2022/day3.rb
new file mode 100644
index 0000000..5b6b0f7
--- /dev/null
+++ b/2022/day3.rb
@@ -0,0 +1,63 @@
+require 'set'
+
+def split_in_half(s)
+ pivot = s.length/2
+ return [s[0, pivot], s[pivot, s.length]]
+end
+
+def shared_item(s)
+ rucksack1, rucksack2 = split_in_half(s)
+ tmp = (rucksack1.chars.to_set & rucksack2.chars.to_set)
+ puts tmp
+ return tmp.first
+end
+
+def scores_hash
+ a = ('a'..'z').zip((1..26)) + ('A'..'Z').zip((27..52))
+ a.to_h
+end
+
+TEST_S = <<-EOC
+vJrwpWtwJgWrhcsFMMfFFhFp
+jqHRNqRjqzjGDLGLrsFMfFZSrLrFZsSL
+PmmdzqPrVvPwwTWBwg
+wMqvLMZHhHMvwLHjbvcjnnSBnvTQFn
+ttgJtRGJQctTZtZT
+CrZsJsPPZsGzwwsLwLmpwMDw
+EOC
+
+def test_1(s)
+ s.lines.map do |line|
+ item = shared_item(line)
+ scores_hash[item]
+ end.sum
+end
+
+def day1
+
+ puts test_1(TEST_S)
+
+ File.open('./day3.txt') do |f|
+ retval = f.readlines.map do |line|
+ item = shared_item(line)
+ scores_hash[item]
+ end
+ puts retval.sum
+ end
+end
+
+require './utils'
+
+def day2
+ badges = []
+ File.open('./day3.txt') do |f|
+
+ f.readlines.each_n(3) do |a,b,c|
+ badge = a.chars.to_set & b.chars.to_set & c.chars.to_set
+ badges << scores_hash[badge.first]
+ end
+ end
+ puts badges.sum
+end
+
+day2()
diff --git a/2022/day3.txt b/2022/day3.txt
new file mode 100644
index 0000000..fec6c82
--- /dev/null
+++ b/2022/day3.txt
@@ -0,0 +1,300 @@
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diff --git a/2022/day4-test.txt b/2022/day4-test.txt
new file mode 100644
index 0000000..9f9e9cf
--- /dev/null
+++ b/2022/day4-test.txt
@@ -0,0 +1,6 @@
+2-4,6-8
+2-3,4-5
+5-7,7-9
+2-8,3-7
+6-6,4-6
+2-6,4-8
diff --git a/2022/day4.rb b/2022/day4.rb
new file mode 100644
index 0000000..a700986
--- /dev/null
+++ b/2022/day4.rb
@@ -0,0 +1,36 @@
+def range(s)
+ n1, n2 = s.split('-')
+ return n1.to_i .. n2.to_i
+end
+
+def read_pairs(filename)
+ retval = []
+ File.open(filename) do |file|
+ file.readlines.each do |line|
+ elf1, elf2 = line.split(',')
+ retval << [range(elf1), range(elf2)]
+ end
+ end
+ return retval
+end
+
+def range_included(r1, r2)
+ return (r2.include?(r1.first) && r2.include?(r1.last)) || (r1.include?(r2.first) && r1.include?(r2.last))
+end
+
+def range_overlaps(r1, r2)
+ return (r2.include?(r1.first) || r2.include?(r1.last)) || (r1.include?(r2.first) || r1.include?(r2.last))
+end
+
+def part1(filename)
+ read_pairs(filename).map { |pairs|
+ range_included(pairs[0], pairs[1])
+ }.select { |x| x }.count
+end
+
+def part2(filename)
+ read_pairs(filename).map { |pairs|
+ range_overlaps(pairs[0], pairs[1])
+ }.select { |x| x }.count
+
+end
diff --git a/2022/day4.txt b/2022/day4.txt
new file mode 100644
index 0000000..94b2176
--- /dev/null
+++ b/2022/day4.txt
@@ -0,0 +1,1000 @@
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diff --git a/2022/day5.rb b/2022/day5.rb
new file mode 100644
index 0000000..6d6f849
--- /dev/null
+++ b/2022/day5.rb
@@ -0,0 +1,43 @@
+TEST_S = <<EOF
+ [D]
+[N] [C]
+[Z] [M] [P]
+ 1 2 3
+
+move 1 from 2 to 1
+move 3 from 1 to 3
+move 2 from 2 to 1
+move 1 from 1 to 2
+EOF
+
+class Stacks
+
+end
+
+class Instructions
+ attr_reader :indexes
+
+ def initialize(header)
+ indexes = {}
+ indexes.default = []
+ header.readlines do |line|
+ line.scan(/\w/).each do |c|
+ indexes[line.index(c)] << c
+ end
+ end
+
+ self.indexes = {}
+
+ indexes.each_key.each_with_index do |i, index|
+ self.indexes[i] = indexes[index]
+ end
+ end
+end
+
+def parse_input(filename)
+ File.open(filename) do |file|
+ contents = file.read
+ header, body = contents.split(/^$/)
+ end
+
+end
diff --git a/2022/utils.rb b/2022/utils.rb
new file mode 100644
index 0000000..ef1185e
--- /dev/null
+++ b/2022/utils.rb
@@ -0,0 +1,10 @@
+require 'pry'
+
+class Array
+ def each_n(n)
+ while not self.empty?
+ a, b, c = self.shift(n)
+ yield [a, b, c]
+ end
+ end
+end
diff --git a/2023/day-01/Cargo.lock b/2023/day-01/Cargo.lock
new file mode 100644
index 0000000..7dc86fc
--- /dev/null
+++ b/2023/day-01/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "day-01"
+version = "0.1.0"
diff --git a/2023/day-01/Cargo.toml b/2023/day-01/Cargo.toml
new file mode 100644
index 0000000..ac3eb44
--- /dev/null
+++ b/2023/day-01/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day-01"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/2023/day-01/src/bin/input.txt b/2023/day-01/src/bin/input.txt
new file mode 100644
index 0000000..a1ff397
--- /dev/null
+++ b/2023/day-01/src/bin/input.txt
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diff --git a/2023/day-01/src/bin/part1.rs b/2023/day-01/src/bin/part1.rs
new file mode 100644
index 0000000..3fd213d
--- /dev/null
+++ b/2023/day-01/src/bin/part1.rs
@@ -0,0 +1,44 @@
+fn main() {
+ let input = include_str!("./input.txt");
+ let output: u32 = input.lines().map(process_line).sum();
+ println!("Result {}", output);
+}
+
+fn process_line(s: &str) -> u32 {
+ let mut string = String::new();
+ let iter: Vec<char> = s.chars().filter(|c| {
+ c.to_digit(10).is_some()
+ }).map(|c| c).collect();
+ assert!(iter.len() >= 1);
+ let chars = [iter.first(), iter.last()];
+ for char in chars {
+ if let Some(c) = char {
+ string.push(*c);
+ }
+ }
+ string.parse::<u32>().unwrap()
+}
+
+#[test]
+fn input_1() {
+ let result = process_line("1abc2");
+ assert_eq!(result, 12);
+}
+
+#[test]
+fn input_2() {
+ let result = process_line("pqr3stu8vwx");
+ assert_eq!(result, 38);
+}
+
+#[test]
+fn input_3() {
+ let result = process_line("a1b2c3d4e5f");
+ assert_eq!(result, 15);
+}
+
+#[test]
+fn input_4() {
+ let result = process_line("treb7uchet");
+ assert_eq!(result, 77);
+}
diff --git a/2023/day-01/src/bin/part2.rs b/2023/day-01/src/bin/part2.rs
new file mode 100644
index 0000000..5185b76
--- /dev/null
+++ b/2023/day-01/src/bin/part2.rs
@@ -0,0 +1,86 @@
+use std::collections::HashMap;
+
+fn main() {
+ let input = include_str!("./input.txt");
+ let output: i32 = input.lines().map(process_line).sum();
+ println!("Result {}", output);
+}
+
+/// Return the position of `needle` in `string`
+fn find_ocurrences<'a>(string: &'a str, needle: &str) -> Vec<(usize, &'a str)> {
+ string.match_indices(needle).collect()
+}
+
+fn find_min<'a>(matches: &[(usize, &'a str)]) -> (usize, &'a str) {
+ let (position, word) = matches.iter().min_by(|(x,_), (y, _)| {
+ x.cmp(y)
+ }).unwrap();
+
+ (*position, word)
+}
+
+#[test]
+fn test_find_min_1() {
+ let input = vec!((1, "eight"), (2, "eight"), (3, "2"));
+ assert_eq!(find_min(&input), (1, "eight"));
+}
+
+#[test]
+fn test_find_min_2() {
+ let input = vec!((4, "eight"), (5, "eight"), (3, "2"));
+ assert_eq!(find_min(&input), (3, "2"));
+}
+
+fn find_max<'a>(matches: &[(usize, &'a str)]) -> (usize, &'a str) {
+ let (position, word) = matches.iter().min_by(|(x,_), (y, _)| {
+ y.cmp(x)
+ }).unwrap();
+
+ (*position, word)
+}
+
+/// Return the first and last number on `s`
+fn process_line(s: &str) -> i32 {
+ let mapping: HashMap<&str, i32> = HashMap::from([
+ ("one", 1), ("two", 2), ("three", 3),
+ ("four", 4), ("five", 5), ("six", 6),
+ ("seven", 7), ("eight", 8), ("nine", 9),
+ ("1", 1), ("2", 2), ("3", 3), ("4", 4), ("5", 5),
+ ("6", 6), ("7", 7), ("8", 8), ("9", 9),
+ ]);
+
+ let matches = mapping.iter().map(|(k, _)| {
+ find_ocurrences(s, k)
+ }).collect::<Vec<_>>().concat();
+ let (_, min_number) = find_min(&matches);
+ let (_, max_number) = find_max(&matches);
+
+ (mapping[min_number] * 10) + mapping[max_number]
+}
+
+#[test]
+fn simple_input() {
+ let string = "onetwo";
+ assert_eq!(process_line(string), 12);
+}
+
+#[test]
+fn overlap_input() {
+ let string = "oneight";
+ assert_eq!(process_line(string), 18);
+}
+
+#[test]
+fn example() {
+ let string = "two1nine
+eightwothree
+abcone2threexyz
+xtwone3four
+4nineeightseven2
+zoneight234
+7pqrstsixteen";
+
+ let result: Vec<i32> = string.lines().map(process_line).collect();
+
+ assert_eq!(result, &[29, 83, 13, 24, 42, 14, 76]);
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-03 17:15:18 +0000