結果
問題 | No.942 プレゼント配り |
ユーザー | koba-e964 |
提出日時 | 2020-01-09 02:42:46 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 11 ms / 2,000 ms |
コード長 | 3,677 bytes |
コンパイル時間 | 13,119 ms |
コンパイル使用メモリ | 378,632 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-23 03:35:14 |
合計ジャッジ時間 | 15,208 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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
5,248 KB |
testcase_01 | AC | 11 ms
5,248 KB |
testcase_02 | AC | 1 ms
5,248 KB |
testcase_03 | AC | 1 ms
5,248 KB |
testcase_04 | AC | 10 ms
5,248 KB |
testcase_05 | AC | 10 ms
5,248 KB |
testcase_06 | AC | 1 ms
5,248 KB |
testcase_07 | AC | 1 ms
5,248 KB |
testcase_08 | AC | 8 ms
5,248 KB |
testcase_09 | AC | 8 ms
5,248 KB |
testcase_10 | AC | 1 ms
5,248 KB |
testcase_11 | AC | 1 ms
5,248 KB |
testcase_12 | AC | 2 ms
5,248 KB |
testcase_13 | AC | 1 ms
5,248 KB |
testcase_14 | AC | 10 ms
5,248 KB |
testcase_15 | AC | 8 ms
5,248 KB |
testcase_16 | AC | 9 ms
5,248 KB |
testcase_17 | AC | 9 ms
5,248 KB |
testcase_18 | AC | 1 ms
5,248 KB |
testcase_19 | AC | 1 ms
5,248 KB |
ソースコード
#[allow(unused_imports)] use std::cmp::*; #[allow(unused_imports)] use std::collections::*; use std::io::{Write, BufWriter}; // https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 macro_rules! input { ($($r:tt)*) => { let stdin = std::io::stdin(); let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock())); let mut next = move || -> String{ bytes .by_ref() .map(|r|r.unwrap() as char) .skip_while(|c|c.is_whitespace()) .take_while(|c|!c.is_whitespace()) .collect() }; input_inner!{next, $($r)*} }; } macro_rules! input_inner { ($next:expr) => {}; ($next:expr, ) => {}; ($next:expr, $var:ident : $t:tt $($r:tt)*) => { let $var = read_value!($next, $t); input_inner!{$next $($r)*} }; } macro_rules! read_value { ($next:expr, ( $($t:tt),* )) => { ( $(read_value!($next, $t)),* ) }; ($next:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>() }; ($next:expr, chars) => { read_value!($next, String).chars().collect::<Vec<char>>() }; ($next:expr, usize1) => { read_value!($next, usize) - 1 }; ($next:expr, [ $t:tt ]) => {{ let len = read_value!($next, usize); (0..len).map(|_| read_value!($next, $t)).collect::<Vec<_>>() }}; ($next:expr, $t:ty) => { $next().parse::<$t>().expect("Parse error") }; } #[allow(unused)] macro_rules! debug { ($($format:tt)*) => (write!(std::io::stderr(), $($format)*).unwrap()); } #[allow(unused)] macro_rules! debugln { ($($format:tt)*) => (writeln!(std::io::stderr(), $($format)*).unwrap()); } // The author read the editorial before implementing this. fn solve() { let out = std::io::stdout(); let mut out = BufWriter::new(out.lock()); macro_rules! puts { ($($format:tt)*) => (write!(out,$($format)*).unwrap()); } input! { n: usize, k: usize, } let q = n / k; if n % 2 == 0 { if q % 2 != 0 { puts!("No\n"); return; } puts!("Yes\n"); for i in 0..k { let mut ans = vec![]; for j in 0..q / 2 { ans.push(1 + j + i * q / 2); ans.push(n - (j + i * q / 2)); } for j in 0..q { puts!("{}{}", ans[j], if j + 1 == q { "\n" } else { " " }); } } return; } assert_eq!(q % 2, 1); if q == 1 { if n == 1 { puts!("Yes\n1\n"); } else { puts!("No\n"); } return; } let mut ans = vec![vec![]; k]; // 天才すぎる 無理 (無理か?) let three_sum = 3 * (3 * k + 1) / 2; for i in 0..k { let a0 = 1 + i; let a1 = k + 1 + ((k - 1) / 2 + i) % k; let a2 = three_sum - a0 - a1; ans[i].extend_from_slice(&[a0, a1, a2]); } for i in 0..(q - 3) / 2 { for j in 0..k { let a0 = 3 * k + 1 + i * k + j; let a1 = q * k - i * k - j; ans[j].extend_from_slice(&[a0, a1]); } } puts!("Yes\n"); for i in 0..k { for j in 0..ans[i].len() { puts!("{}{}", ans[i][j], if j + 1 == ans[i].len() { "\n" } else { " " }); } } } fn main() { // In order to avoid potential stack overflow, spawn a new thread. let stack_size = 104_857_600; // 100 MB let thd = std::thread::Builder::new().stack_size(stack_size); thd.spawn(|| solve()).unwrap().join().unwrap(); }