Maximum number of words found in sentences

#[test]
fn t1() {
    let start = std::time::Instant::now();
    let val = Solution::most_words_found(vec!["alice and bob love leetcode".to_string(), "i think so too".to_string(), "this is great thanks very much".to_string()]);
    let expected = 6;
    log_result!(val == expected, "t1", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t2() {
    let start = std::time::Instant::now();
    let val = Solution::most_words_found(vec!["please wait".to_string(), "continue to fight".to_string(), "continue to win".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::most_words_found(vec!["one".to_string()]);
    let expected = 1;
    log_result!(val == expected, "t3", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t4() {
    let start = std::time::Instant::now();
    let val = Solution::most_words_found(vec!["a b c d e".to_string(), "x y".to_string()]);
    let expected = 5;
    log_result!(val == expected, "t4", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t5() {
    let start = std::time::Instant::now();
    let val = Solution::most_words_found(vec!["hello world".to_string(), "foo bar baz".to_string()]);
    let expected = 3;
    log_result!(val == expected, "t5", start, &expected, &val);
    assert_eq!(val, expected);
}