Level 4

Here are the 10 exercises of level 4:

https://github.com/thebrisly/42-guide-website/blob/main/exams/exam-rank-02/level-4/flood_fill.mdhttps://github.com/thebrisly/42-guide-website/blob/main/exams/exam-rank-02/level-4/fprime.mdhttps://github.com/thebrisly/42-guide-website/blob/main/exams/exam-rank-02/level-4/ft_itoa.mdhttps://github.com/thebrisly/42-guide-website/blob/main/exams/exam-rank-02/level-4/ft_list_foreach.mdhttps://github.com/thebrisly/42-guide-website/blob/main/exams/exam-rank-02/level-4/ft_list_remove_if.mdhttps://github.com/thebrisly/42-guide-website/blob/main/exams/exam-rank-02/level-4/ft_split.mdhttps://github.com/thebrisly/42-guide-website/blob/main/exams/exam-rank-02/level-4/rev_wstr.mdhttps://github.com/thebrisly/42-guide-website/blob/main/exams/exam-rank-02/level-4/rostring.mdhttps://github.com/thebrisly/42-guide-website/blob/main/exams/exam-rank-02/level-4/sort_int_tab.mdhttps://github.com/thebrisly/42-guide-website/blob/main/exams/exam-rank-02/level-4/sort_list.md