RosettaCodeData/Task/Bioinformatics-base-count/Rust/bioinformatics-base-count.rust

39 lines
1.4 KiB
Plaintext

use std::collections::HashMap;
fn main() {
let dna = "CGTAAAAAATTACAACGTCCTTTGGCTATCTCTTAAACTCCTGCTAAATG\
CTCGTGCTTTCCAATTATGTAAGCGTTCCGAGACGGGGTGGTCGATTCTG\
AGGACAAAGGTCAAGATGGAGCGCATCGAACGCAATAAGGATCATTTGAT\
GGGACGTTTCGTCGACAAAGTCTTGTTTCGAGAGTAACGGCTACCGTCTT\
CGATTCTGCTTATAACACTATGTTCTTATGAAATGGATGTTCTGAGTTGG\
TCAGTCCCAATGTGCGGGGTTTCTTTTAGTACGTCGGGAGTGGTATTATA\
TTTAATTTTTCTATATAGCGATCTGTATTTAAGCAATTCATTTAGGTTAT\
CGCCGCGATGCTCGGTTCGGACCGCCAAGCATCTGGCTCCACTGCTAGTG\
TCCTAAATTTGAATGGCAAACACAAATAAGATTTAGCAATTCGTGTAGAC\
GACCGGGGACTTGCATGATGGGAGCAGCTTTGTTAAACTACGAACGTAAT";
let mut base_count = HashMap::new();
let mut total_count = 0;
print!("Sequence:");
for base in dna.chars() {
if total_count % 50 == 0 {
print!("\n{:3}: ", total_count);
}
print!("{}", base);
total_count += 1;
let count = base_count.entry(base).or_insert(0); // Return current count for base or insert 0
*count += 1;
}
println!("\n");
println!("Base count:");
println!("-----------");
let mut base_count: Vec<_> = base_count.iter().collect(); // HashMaps can't be sorted, so collect into Vec
base_count.sort_by_key(|bc| bc.0); // Sort bases alphabetically
for (base, count) in base_count.iter() {
println!(" {}: {:3}", base, count);
}
println!();
println!("Total: {}", total_count);
}