algos/src/main.rs

mod merge_sort;
mod min_cut;
mod quick_sort;
mod ssc;
mod util;

use crate::util::read_to_graph;
use std::cmp::min;

use crate::merge_sort::merge_sort_inversions;
use crate::min_cut::min_cut;
use crate::quick_sort::quick_sort;
use crate::ssc::ssc;
use crate::util::read_to_directed_graph;
use crate::util::read_to_vector;

#[allow(dead_code)]
fn c1a2() {
    let vec = read_to_vector("data/course_1_assignment_2.txt").unwrap();
    let (_sorted, inversions) = merge_sort_inversions(vec);
    println!("course 1 assignment 2: {:?}", inversions);
}

#[allow(dead_code)]
fn c1a3() {
    let mut vec = read_to_vector("data/course_1_assignment_3.txt").unwrap();
    let mut comp_acc: usize = 0;
    quick_sort(&mut vec, &mut comp_acc);
    println!("course 1 assignment 3: {:?}", comp_acc);
    // 1: 162085, 2: 164123, 3: 138382
}

#[allow(dead_code)]
fn c1a4() {
    let g = read_to_graph("data/course_1_assignment_4.txt").unwrap();
    let mut smalles_min_cut = u32::MAX;
    let iterations = g.nodes.len().pow(1);
    for _ in 0..iterations {
        let new_min_cut = min_cut(g.clone());
        if new_min_cut < smalles_min_cut {
            smalles_min_cut = new_min_cut;
        }
    }
    // 17
    println!("course 1 assignment 4: {:?}", smalles_min_cut);
}

#[allow(dead_code)]
fn c2a1() {
    // I have not checked in the graph file, because it has 70MB. This is a tiny test example.
    let g = read_to_directed_graph("data/course_2_assignment_1_test.txt").unwrap();
    let sizes = ssc(g.0, g.1);
    let max_size = min(sizes.len(), 5);
    println!("{:?}", &sizes[0..max_size]);
    // [434821, 968, 459, 313, 211]
}

fn main() {
    // c1a2();
    // c1a3();
    // c1a4();
    c2a1();
}