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Day 11 part 2

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This commit is contained in:
Daniel Flanagan 2022-12-15 01:49:05 -06:00
parent 3e5b448af7
commit 4e6707604a
Signed by: lytedev
GPG key ID: 5B2020A0F9921EF4
1 changed files with 27 additions and 8 deletions
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35
2022/rust/src/day11.rs
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@ -69,11 +69,11 @@ struct Monkey {
}
impl Monkey {
fn act(&mut self) -> Vec<(i64, usize)> {
fn act(&mut self, divisor: i64) -> Vec<(i64, usize)> {
let mut result = vec![];
while let Some(item) = self.items.pop() {
self.num_inspections += 1;
let new_item = self.operator.apply(&self.operand, item) / 3;
let new_item = self.operator.apply(&self.operand, item) / divisor;
if new_item % self.test_div.0 == 0 {
result.push((new_item, self.test_div.1));
} else {
@ -130,7 +130,7 @@ fn part1(input: &mut Input) -> Answer {
for _round in 0..20 {
for monkey_id in 0..input.len() {
let monkey = &mut input[monkey_id];
let items_goto = monkey.act();
let items_goto = monkey.act(3);
for (new_item, monkey_id) in items_goto {
input[monkey_id].items.push(new_item);
}
@ -145,15 +145,34 @@ fn part1(input: &mut Input) -> Answer {
num_inspections.iter().rev().take(2).product()
}
fn part2(input: &Input) -> Answer {
0
fn part2(input: &mut Input) -> Answer {
let monkey_cd = input.iter().map(|m| m.test_div.0).product::<i64>();
for _round in 0..10000 {
for monkey_id in 0..input.len() {
let monkey = &mut input[monkey_id];
let items_goto = monkey.act(1);
for (new_item, monkey_id) in items_goto {
let target_monkey = &mut input[monkey_id];
target_monkey.items.push(new_item % monkey_cd);
}
}
}
let mut num_inspections = input
.iter()
.map(|m| m.num_inspections)
.collect::<Vec<usize>>();
println!("{:?}", num_inspections);
num_inspections.sort();
num_inspections.iter().rev().take(2).product()
}
fn main() {
let input_text = common::day_input(11);
eprintln!("{}\n\nAbove is your input file.\n\n", input_text);
let mut input = processed_input(&input_text);
common::show_answers(&part1(&mut input), &part2(&input))
let mut input2 = processed_input(&input_text);
common::show_answers(&part1(&mut input), &part2(&mut input2))
// common::show_both_answers(&both_parts(&input))
}
@ -197,8 +216,8 @@ Monkey 3:
fn test() {
let mut input = processed_input(TEST_INPUT);
assert_eq!(part1(&mut input), 10605);
let input = processed_input(TEST_INPUT);
assert_eq!(part2(&input), 0);
let mut input = processed_input(TEST_INPUT);
assert_eq!(part2(&mut input), 2713310158);
// assert_eq!(both_parts(&input), (0, 0));
}
}