From 1ccba7112b334c0887bd349966219b38eb9ccfb9 Mon Sep 17 00:00:00 2001 From: omagdy7 Date: Sun, 10 Dec 2023 15:55:42 +0200 Subject: Removed some empty problems and solved 2 problems in rust --- codeforces/YetAnotherBrokenKeoard/main.rs | 59 +++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 codeforces/YetAnotherBrokenKeoard/main.rs (limited to 'codeforces/YetAnotherBrokenKeoard/main.rs') diff --git a/codeforces/YetAnotherBrokenKeoard/main.rs b/codeforces/YetAnotherBrokenKeoard/main.rs new file mode 100644 index 0000000..e39fbd5 --- /dev/null +++ b/codeforces/YetAnotherBrokenKeoard/main.rs @@ -0,0 +1,59 @@ +#[allow(dead_code)] +fn read() -> T { + let mut s = String::new(); + std::io::stdin().read_line(&mut s).ok(); + s.trim().parse().ok().unwrap() +} + +#[allow(dead_code)] +fn read_vec() -> Vec { + read::() + .split_whitespace() + .map(|e| e.parse().ok().unwrap()) + .collect() +} + +#[allow(dead_code)] +fn read_mat(n: u32) -> Vec> { + (0..n).map(|_| read_vec()).collect() +} + +fn solve() { + let inp = read::(); + let s = inp.as_bytes(); + let mut marks = vec![true; s.len()]; + let mut rmost_l = vec![s.iter().position(|&x| x.is_ascii_lowercase()).unwrap_or(0)]; + let mut rmost_h = vec![s.iter().position(|&x| x.is_ascii_uppercase()).unwrap_or(0)]; + for (i, &c) in s.iter().enumerate() { + match c as char { + 'b' => { + marks[i] = false; + marks[rmost_l.pop().unwrap_or(i)] = false; + } + 'B' => { + marks[i] = false; + marks[rmost_h.pop().unwrap_or(i)] = false; + } + _ => {} + }; + if c.is_ascii_uppercase() && c != 'B' as u8 { + rmost_h.push(i); + } else if c.is_ascii_lowercase() && c != 'b' as u8 { + rmost_l.push(i); + } + } + let ans = s + .iter() + .zip(marks.iter()) + .filter_map(|(&x, include)| include.then_some(x as char)) + .collect::(); + println!("{}", ans) +} + +fn main() { + let mut tt = read::(); + while tt > 0 { + solve(); + tt -= 1; + } +} -- cgit v1.2.3