Rust tutorial and sampel codes.
graph TD;
1-->2;
1-->3;
2-->4;
2-->5;
3-->6;
3-->7;
4-->8;
4-->9;
5-->10;
5-->11;
6-->12;
6-->13;
7-->14;
7-->15;
8-->16;
8-->17;
9-->18;
9-->19;
10-->20;
10-->21;
11-->22;
11-->23;
12-->24;
12-->25;
13-->26;
13-->27;
14-->28;
14-->29;
15-->30;
15-->31;