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solution: refactor day12 with serde_json

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This commit is contained in:
Matej Janezic
2022-12-04 22:58:22 +01:00
parent 00000210a8
commit 00000220a6
3 changed files with 11 additions and 17 deletions
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10
src/bin/12.rs
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@@ -1,12 +1,12 @@
use json::{parse, JsonValue::*, JsonValue};
use serde_json::{Value, Value::*, from_str};
fn parse_add(json_object: &JsonValue, skip_red: bool) -> i32 {
fn parse_add(json_object: &Value, skip_red: bool) -> i32 {
match json_object {
Number(x) => x.to_string().parse::<i32>().unwrap_or(0),
Object(x) => {
if skip_red {
for (_, node) in x.iter() {
if let Short { .. } = node {
if let String { .. } = node {
if node.as_str() == Some("red") {
return 0;
}
@@ -21,10 +21,10 @@ fn parse_add(json_object: &JsonValue, skip_red: bool) -> i32 {
}
pub fn part_one(input: &str) -> Option<u32> {
Some(parse_add(&parse(input).unwrap(), false) as u32)
Some(parse_add(&from_str(input).unwrap(), false) as u32)
}
pub fn part_two(input: &str) -> Option<u32> {
Some(parse_add(&parse(input).unwrap(), true) as u32)
Some(parse_add(&from_str(input).unwrap(), true) as u32)
}
fn main() {
let input = &aoc::read_file("inputs", 12);