42 lines
1.2 KiB
Rust
42 lines
1.2 KiB
Rust
fn main() {
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let mut lines = std::io::stdin().lines();
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let mut crates = Vec::new();
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let mut line = lines.next().unwrap().unwrap();
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let crate_count = line.len()/4 + 1;
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for _ in 0..crate_count {
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crates.push(vec![]);
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}
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loop {
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if line.chars().nth(1).unwrap().is_numeric() {
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break;
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}
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for i in 0..crate_count {
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let c = line.chars().nth(4*i+1).unwrap();
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if c != ' ' {
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crates[i].insert(0, c);
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}
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}
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line = lines.next().unwrap().unwrap();
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}
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lines.next().unwrap().unwrap();
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while let Some(Ok(line)) = lines.next() {
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let mut parts = line.split(" ");
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let n: usize = parts.nth(1).unwrap().parse().unwrap();
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let from: usize = parts.nth(1).unwrap().parse().unwrap();
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let to: usize = parts.nth(1).unwrap().parse().unwrap();
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let mut crane = Vec::new();
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for _ in 0..n {
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crane.push(crates[from-1].pop().unwrap());
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}
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for _ in 0..n {
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crates[to-1].push(crane.pop().unwrap());
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}
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}
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for c in crates.iter_mut() {
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print!("{}", c.pop().unwrap());
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}
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println!();
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}
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