projecteuler.net/012/main.rs

use std::fs::File;
use std::io::{ self, BufRead, BufReader };


const PS_SIZE: usize = 500usize;

fn get_ps() -> Vec<u32> {
    let file = File::open("primes.txt").unwrap();
    let lines = io::BufReader::new(file).lines();
    return lines.map(|line| line.unwrap().parse::<u32>().unwrap())
                .collect();    
}

fn divs_num_test(n: u32) -> u32 {
    let mut res = 0;
    for i in 1..n {
        if n % i == 0 { res += 1; }
    }
    return res;
}

fn main() {
    let ps = get_ps();
    let mut n = 1;
    let mut best_dn = 1;
    for k in 2..50000 {
        n += k;
        let dn = 500; //500; //divs_num(n);
        //if dn > best_dn {
        //    best_dn = dn;
            //println!("[{}]{}:{}",k, n, dn);
        //}
    }
}