Crawler log folder

#[test]
fn t1() {
    let start = std::time::Instant::now();
    let val = Solution::min_operations(vec!["d1/".to_string(), "d2/".to_string(), "../".to_string(), "d21/".to_string(), "./".to_string()]);
    let expected = 2;
    log_result!(val == expected, "t1", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t2() {
    let start = std::time::Instant::now();
    let val = Solution::min_operations(vec!["d1/".to_string(), "d2/".to_string(), "./".to_string(), "d3/".to_string(), "../".to_string(), "d31/".to_string()]);
    let expected = 3;
    log_result!(val == expected, "t2", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t3() {
    let start = std::time::Instant::now();
    let val = Solution::min_operations(vec!["d1/".to_string(), "../".to_string(), "../".to_string(), "../".to_string()]);
    let expected = 0;
    log_result!(val == expected, "t3", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t4() {
    let start = std::time::Instant::now();
    let val = Solution::min_operations(vec!["./".to_string(), "../".to_string(), "./".to_string()]);
    let expected = 0;
    log_result!(val == expected, "t4", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t5() {
    let start = std::time::Instant::now();
    let val = Solution::min_operations(vec!["a/".to_string(), "b/".to_string(), "c/".to_string(), "../".to_string(), "../".to_string()]);
    let expected = 1;
    log_result!(val == expected, "t5", start, &expected, &val);
    assert_eq!(val, expected);
}