Function parse

tests/test_shortest_paths.rs:18–35

()

#[test]
fn parse() {
    let i = TINY_EWD;
    let graph = create_graph(i);
    assert_eq!(graph.V(), 8);
    assert_eq!(graph.E(), 15);
    /*
    8 15
    0: 0->2  0.26  0->4  0.38
    1: 1->3  0.29
    2: 2->7  0.34
    3: 3->6  0.52
    4: 4->7  0.37  4->5  0.35
    5: 5->1  0.32  5->7  0.28  5->4  0.35
    6: 6->4  0.93  6->0  0.58  6->2  0.40
    7: 7->3  0.39  7->5  0.28
        */
    // println!("{}", graph.to_string());
}

#[test]
fn dfs() {