58 lines
1.6 KiB
Rust
58 lines
1.6 KiB
Rust
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// The Computer Language Benchmarks Game
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// https://benchmarksgame-team.pages.debian.net/benchmarksgame/
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//
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// contributed by the Rust Project Developers
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// contributed by TeXitoi
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// contributed by BurntSushi
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use std::io::{self, Read};
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macro_rules! regex {
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($re:expr) => {
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::regex::Regex::new($re).unwrap()
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};
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}
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fn main() {
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let mut seq = String::with_capacity(50 * (1 << 20));
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io::stdin().read_to_string(&mut seq).unwrap();
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let ilen = seq.len();
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seq = regex!(">[^\n]*\n|\n").replace_all(&seq, "").into_owned();
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let clen = seq.len();
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let variants = vec![
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regex!("agggtaaa|tttaccct"),
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regex!("[cgt]gggtaaa|tttaccc[acg]"),
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regex!("a[act]ggtaaa|tttacc[agt]t"),
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regex!("ag[act]gtaaa|tttac[agt]ct"),
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regex!("agg[act]taaa|ttta[agt]cct"),
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regex!("aggg[acg]aaa|ttt[cgt]ccct"),
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regex!("agggt[cgt]aa|tt[acg]accct"),
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regex!("agggta[cgt]a|t[acg]taccct"),
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regex!("agggtaa[cgt]|[acg]ttaccct"),
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];
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for re in variants {
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println!("{} {}", re.to_string(), re.find_iter(&seq).count());
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}
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let substs = vec![
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(regex!("B"), "(c|g|t)"),
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(regex!("D"), "(a|g|t)"),
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(regex!("H"), "(a|c|t)"),
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(regex!("K"), "(g|t)"),
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(regex!("M"), "(a|c)"),
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(regex!("N"), "(a|c|g|t)"),
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(regex!("R"), "(a|g)"),
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(regex!("S"), "(c|g)"),
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(regex!("V"), "(a|c|g)"),
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(regex!("W"), "(a|t)"),
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(regex!("Y"), "(c|t)"),
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];
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let mut seq = seq;
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for (re, replacement) in substs {
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seq = re.replace_all(&seq, replacement).into_owned();
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}
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println!("\n{}\n{}\n{}", ilen, clen, seq.len());
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}
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