Starting day 9: use HashMap, not Vec for integers
This commit is contained in:
parent
a954425a9e
commit
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137
day9/Cargo.lock
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137
day9/Cargo.lock
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@ -0,0 +1,137 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "day9"
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[[package]]
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10
day9/Cargo.toml
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day9/Cargo.toml
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@ -0,0 +1,10 @@
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[package]
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name = "day9"
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version = "0.1.0"
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authors = ["Tyler Hallada <tyler@hallada.net>"]
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edition = "2018"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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num_enum = "0.4.2"
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1
day9/input/input.txt
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1
day9/input/input.txt
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@ -0,0 +1 @@
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1102,34463338,34463338,63,1007,63,34463338,63,1005,63,53,1101,0,3,1000,109,988,209,12,9,1000,209,6,209,3,203,0,1008,1000,1,63,1005,63,65,1008,1000,2,63,1005,63,904,1008,1000,0,63,1005,63,58,4,25,104,0,99,4,0,104,0,99,4,17,104,0,99,0,0,1102,32,1,1016,1101,38,0,1012,1102,1,693,1022,1102,1,27,1007,1101,0,190,1025,1102,20,1,1019,1102,1,33,1008,1102,28,1,1013,1101,0,1,1021,1102,1,851,1026,1102,22,1,1018,1101,29,0,1005,1101,0,21,1004,1101,36,0,1009,1101,0,195,1024,1101,0,39,1002,1101,0,848,1027,1102,1,34,1003,1102,23,1,1015,1102,1,30,1010,1101,0,26,1017,1102,1,35,1001,1102,1,489,1028,1102,1,484,1029,1102,1,686,1023,1102,0,1,1020,1102,25,1,1006,1102,1,31,1014,1101,37,0,1000,1102,1,24,1011,109,23,2105,1,1,4,187,1105,1,199,1001,64,1,64,1002,64,2,64,109,-18,2102,1,-3,63,1008,63,41,63,1005,63,223,1001,64,1,64,1106,0,225,4,205,1002,64,2,64,109,2,2101,0,1,63,1008,63,33,63,1005,63,251,4,231,1001,64,1,64,1105,1,251,1002,64,2,64,109,13,21107,40,41,-8,1005,1012,269,4,257,1106,0,273,1001,64,1,64,1002,64,2,64,109,9,1205,-8,287,4,279,1105,1,291,1001,64,1,64,1002,64,2,64,109,-38,2101,0,9,63,1008,63,34,63,1005,63,315,1001,64,1,64,1106,0,317,4,297,1002,64,2,64,109,18,21108,41,38,1,1005,1010,337,1001,64,1,64,1106,0,339,4,323,1002,64,2,64,109,-5,2107,30,1,63,1005,63,359,1001,64,1,64,1106,0,361,4,345,1002,64,2,64,109,14,21101,42,0,-7,1008,1011,42,63,1005,63,387,4,367,1001,64,1,64,1106,0,387,1002,64,2,64,109,-18,1208,0,39,63,1005,63,403,1106,0,409,4,393,1001,64,1,64,1002,64,2,64,109,3,1207,-1,38,63,1005,63,425,1106,0,431,4,415,1001,64,1,64,1002,64,2,64,109,-8,1201,5,0,63,1008,63,35,63,1005,63,455,1001,64,1,64,1106,0,457,4,437,1002,64,2,64,109,30,1206,-4,469,1106,0,475,4,463,1001,64,1,64,1002,64,2,64,109,10,2106,0,-7,4,481,1106,0,493,1001,64,1,64,1002,64,2,64,109,-24,21102,43,1,3,1008,1014,40,63,1005,63,517,1001,64,1,64,1105,1,519,4,499,1002,64,2,64,109,-4,2108,41,-5,63,1005,63,539,1001,64,1,64,1106,0,541,4,525,1002,64,2,64,109,18,21101,44,0,-8,1008,1017,47,63,1005,63,561,1105,1,567,4,547,1001,64,1,64,1002,64,2,64,109,-24,1202,6,1,63,1008,63,27,63,1005,63,589,4,573,1106,0,593,1001,64,1,64,1002,64,2,64,109,7,1208,-5,34,63,1005,63,611,4,599,1106,0,615,1001,64,1,64,1002,64,2,64,109,-5,1207,6,37,63,1005,63,637,4,621,1001,64,1,64,1106,0,637,1002,64,2,64,109,23,1206,-6,655,4,643,1001,64,1,64,1105,1,655,1002,64,2,64,109,-10,2107,32,-8,63,1005,63,673,4,661,1105,1,677,1001,64,1,64,1002,64,2,64,109,5,2105,1,2,1001,64,1,64,1106,0,695,4,683,1002,64,2,64,109,-17,1202,0,1,63,1008,63,20,63,1005,63,715,1106,0,721,4,701,1001,64,1,64,1002,64,2,64,109,-4,1201,4,0,63,1008,63,21,63,1005,63,743,4,727,1106,0,747,1001,64,1,64,1002,64,2,64,109,10,1205,10,763,1001,64,1,64,1105,1,765,4,753,1002,64,2,64,109,1,21102,45,1,1,1008,1012,45,63,1005,63,787,4,771,1105,1,791,1001,64,1,64,1002,64,2,64,109,-4,2102,1,-2,63,1008,63,29,63,1005,63,813,4,797,1105,1,817,1001,64,1,64,1002,64,2,64,109,-4,2108,33,5,63,1005,63,835,4,823,1105,1,839,1001,64,1,64,1002,64,2,64,109,23,2106,0,1,1106,0,857,4,845,1001,64,1,64,1002,64,2,64,109,-12,21108,46,46,1,1005,1015,879,4,863,1001,64,1,64,1106,0,879,1002,64,2,64,109,10,21107,47,46,-5,1005,1019,899,1001,64,1,64,1105,1,901,4,885,4,64,99,21101,27,0,1,21101,915,0,0,1105,1,922,21201,1,52134,1,204,1,99,109,3,1207,-2,3,63,1005,63,964,21201,-2,-1,1,21101,0,942,0,1105,1,922,22101,0,1,-1,21201,-2,-3,1,21101,0,957,0,1105,1,922,22201,1,-1,-2,1106,0,968,21201,-2,0,-2,109,-3,2106,0,0
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1
day9/input/test1.txt
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day9/input/test1.txt
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3,15,3,16,1002,16,10,16,1,16,15,15,4,15,99,0,0
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407
day9/src/intcode.rs
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407
day9/src/intcode.rs
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use std::collections::HashMap;
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use std::convert::TryFrom;
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use std::error::Error;
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use std::fs::File;
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use std::io::prelude::*;
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use std::result;
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use std::str::FromStr;
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use num_enum::TryFromPrimitive;
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type Result<T> = result::Result<T, Box<dyn Error>>;
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#[derive(Debug, Clone, PartialEq)]
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pub struct Intcode {
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pub integers: HashMap<usize, i32>,
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pub pointer: usize,
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pub halted: bool,
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}
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#[derive(Debug, PartialEq)]
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pub struct Instruction {
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opcode: Opcode,
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parameter_modes: Vec<ParameterMode>,
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}
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impl TryFrom<i32> for Instruction {
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type Error = Box<dyn Error>;
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fn try_from(integer: i32) -> Result<Self> {
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let opcode: Opcode = Opcode::try_from((integer % 100) as u8)?;
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let modes_integer = integer / 100;
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let mut parameter_modes = vec![];
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for parameter_index in 0..opcode.parameter_count() {
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parameter_modes.push(match opcode.target_parameter_index() {
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Some(target_parameter_index)
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if target_parameter_index == parameter_index as usize =>
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{
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ParameterMode::Position
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}
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_ => ParameterMode::try_from(
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(modes_integer % (10_i32.pow(parameter_index + 1))
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/ 10_i32.pow(parameter_index)) as u8,
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)?,
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})
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}
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Ok(Instruction {
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opcode,
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parameter_modes,
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})
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}
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}
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#[derive(Debug, PartialEq, TryFromPrimitive)]
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#[repr(u8)]
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pub enum Opcode {
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Add = 1,
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Mult = 2,
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Input = 3,
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Output = 4,
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JumpIfTrue = 5,
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JumpIfFalse = 6,
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LessThan = 7,
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Equals = 8,
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Halt = 99,
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}
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impl Opcode {
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pub fn parameter_count(&self) -> u32 {
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match self {
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Opcode::Add => 3,
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Opcode::Mult => 3,
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Opcode::Input => 1,
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Opcode::Output => 1,
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Opcode::JumpIfTrue => 2,
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Opcode::JumpIfFalse => 2,
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Opcode::LessThan => 3,
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Opcode::Equals => 3,
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Opcode::Halt => 0,
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}
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}
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pub fn target_parameter_index(&self) -> Option<usize> {
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match self {
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Opcode::Add => Some(2),
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Opcode::Mult => Some(2),
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Opcode::Input => Some(0),
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Opcode::Output => None,
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Opcode::JumpIfTrue => None,
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Opcode::JumpIfFalse => None,
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Opcode::LessThan => Some(2),
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Opcode::Equals => Some(2),
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Opcode::Halt => None,
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}
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}
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}
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#[derive(Debug, PartialEq, TryFromPrimitive)]
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#[repr(u8)]
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pub enum ParameterMode {
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Position = 0,
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Immediate = 1,
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}
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impl FromStr for Intcode {
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type Err = Box<dyn Error>;
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fn from_str(s: &str) -> Result<Intcode> {
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let intcode_string = s.trim().to_string();
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let mut integers = HashMap::new();
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for (index, code) in intcode_string.split(',').enumerate() {
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integers.insert(index, code.parse().unwrap());
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}
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Ok(Intcode::new(integers))
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}
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}
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impl Intcode {
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fn new(integers: HashMap<usize, i32>) -> Intcode {
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Intcode {
|
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integers,
|
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pointer: 0,
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halted: false,
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}
|
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}
|
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fn load_parameters(&self, pointer: usize, instruction: &Instruction) -> Vec<i32> {
|
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(0..instruction.opcode.parameter_count() as usize)
|
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.map(|parameter_index| {
|
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let mut integer = self.integers[&(pointer + parameter_index + 1)];
|
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if let ParameterMode::Position = instruction.parameter_modes[parameter_index] {
|
||||
match instruction.opcode.target_parameter_index() {
|
||||
Some(target_parameter_index)
|
||||
if target_parameter_index == parameter_index => {}
|
||||
_ => {
|
||||
integer = self.integers[&(integer as usize)];
|
||||
}
|
||||
}
|
||||
}
|
||||
integer
|
||||
})
|
||||
.collect()
|
||||
}
|
||||
|
||||
pub fn execute(&mut self, inputs: &[i32]) -> Result<Vec<i32>> {
|
||||
let mut input_index = 0;
|
||||
let mut output = vec![];
|
||||
|
||||
loop {
|
||||
let instruction = Instruction::try_from(self.integers[&self.pointer])?;
|
||||
let parameters = self.load_parameters(self.pointer, &instruction);
|
||||
let mut jump_pointer: Option<usize> = None;
|
||||
|
||||
match instruction.opcode {
|
||||
Opcode::Add => {
|
||||
self.integers.insert(parameters[2] as usize, parameters[0] + parameters[1]);
|
||||
}
|
||||
Opcode::Mult => {
|
||||
self.integers.insert(parameters[2] as usize, parameters[0] * parameters[1]);
|
||||
}
|
||||
Opcode::Input => {
|
||||
if input_index >= inputs.len() {
|
||||
break; // pause execution to wait for more input
|
||||
}
|
||||
self.integers.insert(parameters[0] as usize, inputs[input_index]);
|
||||
input_index += 1;
|
||||
}
|
||||
Opcode::Output => {
|
||||
output.push(parameters[0]);
|
||||
}
|
||||
Opcode::JumpIfTrue => {
|
||||
if parameters[0] != 0 {
|
||||
jump_pointer = Some(parameters[1] as usize);
|
||||
}
|
||||
}
|
||||
Opcode::JumpIfFalse => {
|
||||
if parameters[0] == 0 {
|
||||
jump_pointer = Some(parameters[1] as usize);
|
||||
}
|
||||
}
|
||||
Opcode::LessThan => {
|
||||
if parameters[0] < parameters[1] {
|
||||
self.integers.insert(parameters[2] as usize, 1);
|
||||
} else {
|
||||
self.integers.insert(parameters[2] as usize, 0);
|
||||
}
|
||||
}
|
||||
Opcode::Equals => {
|
||||
if parameters[0] == parameters[1] {
|
||||
self.integers.insert(parameters[2] as usize, 1);
|
||||
} else {
|
||||
self.integers.insert(parameters[2] as usize, 0);
|
||||
}
|
||||
}
|
||||
Opcode::Halt => {
|
||||
self.halted = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
match jump_pointer {
|
||||
Some(jump_pointer) => self.pointer = jump_pointer,
|
||||
None => self.pointer += 1 + instruction.opcode.parameter_count() as usize,
|
||||
}
|
||||
}
|
||||
|
||||
Ok(output)
|
||||
}
|
||||
}
|
||||
|
||||
pub fn read_intcode(filename: &str) -> Result<Intcode> {
|
||||
let mut file = File::open(filename)?;
|
||||
let mut intcode_string = String::new();
|
||||
file.read_to_string(&mut intcode_string)?;
|
||||
|
||||
Ok(intcode_string.parse()?)
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
const TEST_INPUT: &str = "input/test1.txt";
|
||||
|
||||
#[test]
|
||||
fn reads_intcode() {
|
||||
assert_eq!(
|
||||
read_intcode(TEST_INPUT).unwrap(),
|
||||
Intcode::new(
|
||||
vec![3, 15, 3, 16, 1002, 16, 10, 16, 1, 16, 15, 15, 4, 15, 99, 0, 0]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect()
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn converts_integer_to_instruction() {
|
||||
assert_eq!(
|
||||
Instruction::try_from(1002).unwrap(),
|
||||
Instruction {
|
||||
opcode: Opcode::Mult,
|
||||
parameter_modes: vec![
|
||||
ParameterMode::Position,
|
||||
ParameterMode::Immediate,
|
||||
ParameterMode::Position
|
||||
],
|
||||
}
|
||||
);
|
||||
|
||||
assert_eq!(
|
||||
Instruction::try_from(101).unwrap(),
|
||||
Instruction {
|
||||
opcode: Opcode::Add,
|
||||
parameter_modes: vec![
|
||||
ParameterMode::Immediate,
|
||||
ParameterMode::Position,
|
||||
ParameterMode::Position
|
||||
],
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn executes_intcodes() {
|
||||
let mut intcode = Intcode::new(vec![1, 0, 0, 0, 99].into_iter().enumerate().collect());
|
||||
intcode.execute(&[0]).unwrap();
|
||||
assert_eq!(
|
||||
intcode.integers,
|
||||
vec![2, 0, 0, 0, 99].into_iter().enumerate().collect()
|
||||
);
|
||||
|
||||
let mut intcode = Intcode::new(vec![2, 3, 0, 3, 99].into_iter().enumerate().collect());
|
||||
intcode.execute(&[0]).unwrap();
|
||||
assert_eq!(
|
||||
intcode.integers,
|
||||
vec![2, 3, 0, 6, 99].into_iter().enumerate().collect()
|
||||
);
|
||||
|
||||
let mut intcode = Intcode::new(vec![2, 4, 4, 5, 99, 0].into_iter().enumerate().collect());
|
||||
intcode.execute(&[0]).unwrap();
|
||||
assert_eq!(
|
||||
intcode.integers,
|
||||
vec![2, 4, 4, 5, 99, 9801].into_iter().enumerate().collect()
|
||||
);
|
||||
|
||||
let mut intcode = Intcode::new(
|
||||
vec![1, 1, 1, 4, 99, 5, 6, 0, 99]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect(),
|
||||
);
|
||||
intcode.execute(&[0]).unwrap();
|
||||
assert_eq!(
|
||||
intcode.integers,
|
||||
vec![30, 1, 1, 4, 2, 5, 6, 0, 99]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect()
|
||||
);
|
||||
|
||||
let mut intcode = Intcode::new(
|
||||
vec![1, 9, 10, 3, 2, 3, 11, 0, 99, 30, 40, 50]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect(),
|
||||
);
|
||||
intcode.execute(&[0]).unwrap();
|
||||
assert_eq!(
|
||||
intcode.integers,
|
||||
vec![3500, 9, 10, 70, 2, 3, 11, 0, 99, 30, 40, 50]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect()
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn less_and_equal_outputs() {
|
||||
let intcode = Intcode::new(
|
||||
vec![3, 9, 8, 9, 10, 9, 4, 9, 99, -1, 8]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect(),
|
||||
);
|
||||
assert_eq!(intcode.clone().execute(&[8]).unwrap(), vec![1]);
|
||||
assert_eq!(intcode.clone().execute(&[0]).unwrap(), vec![0]);
|
||||
|
||||
let intcode = Intcode::new(
|
||||
vec![3, 9, 7, 9, 10, 9, 4, 9, 99, -1, 8]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect(),
|
||||
);
|
||||
assert_eq!(intcode.clone().execute(&[0]).unwrap(), vec![1]);
|
||||
assert_eq!(intcode.clone().execute(&[9]).unwrap(), vec![0]);
|
||||
|
||||
let intcode = Intcode::new(
|
||||
vec![3, 3, 1108, -1, 8, 3, 4, 3, 99]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect(),
|
||||
);
|
||||
assert_eq!(intcode.clone().execute(&[8]).unwrap(), vec![1]);
|
||||
assert_eq!(intcode.clone().execute(&[0]).unwrap(), vec![0]);
|
||||
|
||||
let intcode = Intcode::new(
|
||||
vec![3, 3, 1107, -1, 8, 3, 4, 3, 99]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect(),
|
||||
);
|
||||
assert_eq!(intcode.clone().execute(&[0]).unwrap(), vec![1]);
|
||||
assert_eq!(intcode.clone().execute(&[9]).unwrap(), vec![0]);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn jump_outputs() {
|
||||
let intcode = Intcode::new(
|
||||
vec![3, 12, 6, 12, 15, 1, 13, 14, 13, 4, 13, 99, -1, 0, 1, 9]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect(),
|
||||
);
|
||||
assert_eq!(intcode.clone().execute(&[0]).unwrap(), vec![0]);
|
||||
assert_eq!(intcode.clone().execute(&[1]).unwrap(), vec![1]);
|
||||
|
||||
let intcode = Intcode::new(
|
||||
vec![3, 3, 1105, -1, 9, 1101, 0, 0, 12, 4, 12, 99, 1]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect(),
|
||||
);
|
||||
assert_eq!(intcode.clone().execute(&[0]).unwrap(), vec![0]);
|
||||
assert_eq!(intcode.clone().execute(&[1]).unwrap(), vec![1]);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn larger_part2_intcode() {
|
||||
let intcode = Intcode::new(
|
||||
vec![
|
||||
3, 21, 1008, 21, 8, 20, 1005, 20, 22, 107, 8, 21, 20, 1006, 20, 31, 1106, 0, 36,
|
||||
98, 0, 0, 1002, 21, 125, 20, 4, 20, 1105, 1, 46, 104, 999, 1105, 1, 46, 1101, 1000,
|
||||
1, 20, 4, 20, 1105, 1, 46, 98, 99,
|
||||
]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect(),
|
||||
);
|
||||
assert_eq!(intcode.clone().execute(&[0]).unwrap(), vec![999]);
|
||||
assert_eq!(intcode.clone().execute(&[8]).unwrap(), vec![1000]);
|
||||
assert_eq!(intcode.clone().execute(&[9]).unwrap(), vec![1001]);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn multiple_input_intcode() {
|
||||
let intcode = Intcode::new(
|
||||
vec![
|
||||
3, 15, 3, 16, 1002, 16, 10, 16, 1, 16, 15, 15, 4, 15, 99, 0, 0,
|
||||
]
|
||||
.into_iter()
|
||||
.enumerate()
|
||||
.collect(),
|
||||
);
|
||||
assert_eq!(intcode.clone().execute(&[1, 1]).unwrap(), vec![11]);
|
||||
}
|
||||
}
|
||||
30
day9/src/main.rs
Normal file
30
day9/src/main.rs
Normal file
@ -0,0 +1,30 @@
|
||||
use std::error::Error;
|
||||
use std::result;
|
||||
|
||||
mod intcode;
|
||||
|
||||
use intcode::{Intcode, read_intcode};
|
||||
|
||||
const INPUT: &str = "input/input.txt";
|
||||
|
||||
type Result<T> = result::Result<T, Box<dyn Error>>;
|
||||
|
||||
fn solve_part1() -> Result<u32> {
|
||||
Ok(1)
|
||||
}
|
||||
|
||||
fn solve_part2() -> Result<u32> {
|
||||
Ok(1)
|
||||
}
|
||||
|
||||
fn main() -> Result<()> {
|
||||
println!("Part 1: {}", solve_part1()?);
|
||||
println!("Part 2: {}", solve_part2()?);
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user