27 lines
760 B
Rust
27 lines
760 B
Rust
use aoc22::{day7, util};
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const TOTAL_SPACE: usize = 70000000;
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const REQUIRED_SPACE: usize = 30000000;
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pub fn main() {
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let root = day7::parse_cmdline(&util::parse_input());
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let r = &*root.borrow();
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let free_space = TOTAL_SPACE - r.size();
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assert!(free_space < REQUIRED_SPACE);
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let required_deletion = REQUIRED_SPACE - free_space;
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let mut min_sufficient = usize::MAX;
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for child in root.borrow().all_children() {
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let c = &*child.borrow();
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if let day7::Node::Dir { .. } = c {
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let size = c.size();
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if size >= required_deletion && size <= min_sufficient {
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min_sufficient = size;
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}
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}
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}
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println!("Size of min sufficient dir is {}", min_sufficient);
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}
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