index_prime_position.rs

index_prime_position.rs

use std::collections::HashMap;

fn is_prime(n: i32) -> bool {
    if n <= 1 {
        return false;
    }
    let mut i = 2;
    while i * i <= n {
        if n % i == 0 {
            return false;
        }
        i += 1;
    }
    true
}

fn main() {
    let mut hashmap: HashMap<i32, (i32, i32)> = HashMap::new();

    for count in 0..1000 {
        if is_prime(count) {
            hashmap.insert(count, (count, count % 13));
        } else {
            hashmap.insert(count, (0, count % 13));
      }
    }

    let mut sorted_vec: Vec<(&i32, &(i32, i32))> = hashmap.iter().collect();
    //(index, (prime, position))
    sorted_vec.sort_by_key(|(key, _value)| *key);

    for vec in sorted_vec {
    println!("{:?}", vec);
    }
}