triangles.rs

fn main()
{
    const RANGES: [i32; 10] = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
    let mut triangles: i32 = 0;

    for a in 0..RANGES.len()-2
    {
        for b in 1..RANGES.len()-a
        {
            for c in 1..RANGES.len()-a-b
            {
                let t: bool = triangle(RANGES[a], RANGES[a+b], RANGES[a+b+c]);

                if t
                {
                    println!("{}:{}:{} is a triangle", RANGES[a], RANGES[a+b], RANGES[a+b+c]);
                    triangles += 1;
                }
                else
                {
                    println!("{}:{}:{} is not a triangle", RANGES[a], RANGES[a+b], RANGES[a+b+c]);
                }
            }
        }
    }

    println!("Number of triangles: {}", triangles);
}

fn triangle(len1: i32, len2: i32, len3: i32) -> bool
{
    let lengths: [&i32; 3] = [&len1, &len2, &len3];
    let mut hyp: &i32 = &len1;
    let mut total: i32 = 0;

    for length in lengths.iter()
    {
        if *length > hyp
        {
            hyp = length;
        }

        total += *length;
    }

    total -= hyp;

    /*
    println!("{}", hyp);
    println!("{}", total);
    */

    if total > *hyp
    {
        true
    }
    else
    {
        false
    }
}