結果
問題 | No.2427 Tree Distance Two |
ユーザー | naut3 |
提出日時 | 2023-08-19 20:44:50 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 216 ms / 2,000 ms |
コード長 | 1,836 bytes |
コンパイル時間 | 15,316 ms |
コンパイル使用メモリ | 383,944 KB |
実行使用メモリ | 47,104 KB |
最終ジャッジ日時 | 2024-05-07 03:48:34 |
合計ジャッジ時間 | 21,254 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
6,812 KB |
testcase_01 | AC | 1 ms
6,812 KB |
testcase_02 | AC | 1 ms
6,816 KB |
testcase_03 | AC | 210 ms
42,948 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 200 ms
42,792 KB |
testcase_06 | AC | 1 ms
6,940 KB |
testcase_07 | AC | 172 ms
46,128 KB |
testcase_08 | AC | 216 ms
47,104 KB |
testcase_09 | AC | 175 ms
45,864 KB |
testcase_10 | AC | 210 ms
45,928 KB |
testcase_11 | AC | 175 ms
45,672 KB |
testcase_12 | AC | 184 ms
45,100 KB |
testcase_13 | AC | 191 ms
44,364 KB |
testcase_14 | AC | 93 ms
42,252 KB |
testcase_15 | AC | 1 ms
6,940 KB |
testcase_16 | AC | 1 ms
6,940 KB |
testcase_17 | AC | 1 ms
6,944 KB |
testcase_18 | AC | 1 ms
6,940 KB |
testcase_19 | AC | 1 ms
6,940 KB |
testcase_20 | AC | 4 ms
6,940 KB |
testcase_21 | AC | 5 ms
6,944 KB |
testcase_22 | AC | 2 ms
6,944 KB |
testcase_23 | AC | 1 ms
6,944 KB |
testcase_24 | AC | 4 ms
6,940 KB |
testcase_25 | AC | 44 ms
12,672 KB |
testcase_26 | AC | 117 ms
27,360 KB |
testcase_27 | AC | 75 ms
20,224 KB |
testcase_28 | AC | 187 ms
39,952 KB |
testcase_29 | AC | 161 ms
35,316 KB |
testcase_30 | AC | 104 ms
26,640 KB |
testcase_31 | AC | 65 ms
17,920 KB |
testcase_32 | AC | 107 ms
26,312 KB |
testcase_33 | AC | 91 ms
23,496 KB |
testcase_34 | AC | 23 ms
8,704 KB |
コンパイルメッセージ
warning: unused macro definition: `input_line` --> src/main.rs:15:18 | 15 | macro_rules! input_line { | ^^^^^^^^^^ | = note: `#[warn(unused_macros)]` on by default warning: unused `Result` that must be used --> src/main.rs:43:5 | 43 | writeln!(out, "{}", ans.iter().map(|x| x.to_string()).collect::<Vec<_>>().join("\n")); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: this `Result` may be an `Err` variant, which should be handled = note: `#[warn(unused_must_use)]` on by default = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
ソースコード
#![allow(non_snake_case, unused_imports)] use std::io::{self, prelude::*}; use std::str; fn main() { let (stdin, stdout) = (io::stdin(), io::stdout()); let mut scan = Scanner::new(stdin.lock()); let mut out = io::BufWriter::new(stdout.lock()); macro_rules! input { ($T: ty) => { scan.token::<$T>() }; } macro_rules! input_line { ($T: ty, $N: expr) => { (0..$N).map(|_| scan.token::<$T>()).collect::<Vec<_>>() }; } let N = input!(usize); let mut graph = vec![vec![]; N]; for _ in 0..N-1 { let u = input!(usize) - 1; let v = input!(usize) - 1; graph[u].push(v); graph[v].push(u); } let mut ans = vec![0; N]; for i in 0..N { for &nxt in graph[i].iter() { ans[i] += graph[nxt].len(); } ans[i] -= graph[i].len(); } writeln!(out, "{}", ans.iter().map(|x| x.to_string()).collect::<Vec<_>>().join("\n")); } struct Scanner<R> { reader: R, buf_str: Vec<u8>, buf_iter: str::SplitWhitespace<'static>, } impl<R: BufRead> Scanner<R> { fn new(reader: R) -> Self { Self { reader, buf_str: vec![], buf_iter: "".split_whitespace(), } } fn token<T: str::FromStr>(&mut self) -> T { loop { if let Some(token) = self.buf_iter.next() { return token.parse().ok().expect("Failed parse"); } self.buf_str.clear(); self.reader .read_until(b'\n', &mut self.buf_str) .expect("Failed read"); self.buf_iter = unsafe { let slice = str::from_utf8_unchecked(&self.buf_str); std::mem::transmute(slice.split_whitespace()) } } } }