rust/word_frequency.rs

use std::collections::HashMap;
use std::fs;

fn word_frequency(file_path: &str) -> HashMap<String, u32> {
    let contents = fs::read_to_string(file_path).expect("Something went wrong reading the file");
    let mut map = HashMap::new();
    for word in contents.split_whitespace() {
        let count = map.entry(word.to_string()).or_insert(0);
        *count += 1;
    }
    map
}

fn main() {
    println!("{:?}", word_frequency("sample.txt"));
}