fn make_bins(limits: &Vec<usize>, data: &Vec<usize>) -> Vec<Vec<usize>> {
    let mut bins: Vec<Vec<usize>> = Vec::with_capacity(limits.len() + 1);
    for _ in 0..=limits.len() {bins.push(Vec::new());}

    limits.iter().enumerate().for_each(|(idx, limit)| {
        data.iter().for_each(|elem| {
                 if idx == 0 && elem < limit              { bins[0].push(*elem); }             // smaller than the smallest limit
            else if idx == limits.len()-1 && elem >= limit { bins[limits.len()].push(*elem); } // larger than the largest limit
            else if elem < limit && elem >= &limits[idx-1] { bins[idx].push(*elem); }          // otherwise
        });
    });

    bins
}

fn print_bins(limits: &Vec<usize>, bins: &Vec<Vec<usize>>) {
    for (idx, bin) in bins.iter().enumerate() {
        if idx == 0 {
            println!("          < {:3} := {:3}", limits[idx], bin.len());
        } else if idx == limits.len() {
            println!(">= {:3}          := {:3}",  limits[idx-1], bin.len());
        }else {
            println!(">= {:3} .. < {:3} := {:3}", limits[idx-1], limits[idx], bin.len());
        }
    };
}

fn main() {
    let limits1  = vec![23, 37, 43, 53, 67, 83];
    let data1 = vec![95,21,94,12,99,4,70,75,83,93,52,80,57,5,53,86,65,17,92,83,71,61,54,58,47,
                     16, 8, 9,32,84,7,87,46,19,30,37,96,6,98,40,79,97,45,64,60,29,49,36,43,55];

   let limits2 = vec![14, 18, 249, 312, 389, 392, 513, 591, 634, 720];
   let data2 = vec![
       445,814,519,697,700,130,255,889,481,122,932, 77,323,525,570,219,367,523,442,933,
       416,589,930,373,202,253,775, 47,731,685,293,126,133,450,545,100,741,583,763,306,
       655,267,248,477,549,238, 62,678, 98,534,622,907,406,714,184,391,913, 42,560,247,
       346,860, 56,138,546, 38,985,948, 58,213,799,319,390,634,458,945,733,507,916,123,
       345,110,720,917,313,845,426,  9,457,628,410,723,354,895,881,953,677,137,397, 97,
       854,740, 83,216,421, 94,517,479,292,963,376,981,480, 39,257,272,157,  5,316,395,
       787,942,456,242,759,898,576, 67,298,425,894,435,831,241,989,614,987,770,384,692,
       698,765,331,487,251,600,879,342,982,527,736,795,585, 40, 54,901,408,359,577,237,
       605,847,353,968,832,205,838,427,876,959,686,646,835,127,621,892,443,198,988,791,
       466, 23,707,467, 33,670,921,180,991,396,160,436,717,918,  8,374,101,684,727,749
           ];


    // Why are we calling it RC anyways???
    println!("RC FIRST EXAMPLE");
    let bins1 = make_bins(&limits1, &data1);
    print_bins(&limits1, &bins1);

    println!("\nRC SECOND EXAMPLE");
    let bins2 = make_bins(&limits2, &data2);
    print_bins(&limits2, &bins2);
}