結果
問題 | No.884 Eat and Add |
ユーザー | koba-e964 |
提出日時 | 2020-01-04 22:11:37 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 6 ms / 1,000 ms |
コード長 | 2,791 bytes |
コンパイル時間 | 12,962 ms |
コンパイル使用メモリ | 391,768 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-05-02 08:50:24 |
合計ジャッジ時間 | 13,208 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 0 ms
6,812 KB |
testcase_01 | AC | 1 ms
6,816 KB |
testcase_02 | AC | 1 ms
6,812 KB |
testcase_03 | AC | 6 ms
6,940 KB |
testcase_04 | AC | 6 ms
6,940 KB |
testcase_05 | AC | 5 ms
6,944 KB |
testcase_06 | AC | 5 ms
6,940 KB |
testcase_07 | AC | 4 ms
6,940 KB |
testcase_08 | AC | 5 ms
6,940 KB |
testcase_09 | AC | 5 ms
6,940 KB |
testcase_10 | AC | 1 ms
6,940 KB |
testcase_11 | AC | 1 ms
6,940 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()); } 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: chars, } let len = n.len(); const INF: i64 = 1 << 50; let mut dp = vec![[INF; 2]; len + 1]; dp[len][0] = 0; for i in (0..len).rev() { let dig = (n[i] as u8 - b'0') as usize; for j in 0..2 { let added = (dig + j) % 2; let carry = (dig + j + added) / 2; dp[i][carry] = min(dp[i][carry], dp[i + 1][j] + added as i64); if added == 1 { dp[i][0] = min(dp[i][0], dp[i + 1][j] + 1); } } } puts!("{}\n", min(dp[0][0], dp[0][1] + 1)); } 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(); }