1) DEFINE STACK AND TELLS ITS APPLICATIONS WITH JUSTIFICATIONS, ITS ADVANTADGES AND DISADVANTADGES

2) DEFINE PRE-FIX NOTATION AND TELLS ITS APPLICATIONS WITH JUSTIFICATIONS, ITS ADVANTADGES AND DISADVANTADGES

3) DEFINE POST-FIX NOTATION AND TELLS ITS APPLICATIONS WITH JUSTIFICATIONS, ITS ADVANTADGES AND DISADVANTADGES

4)    DEFINE IN-FIX NOTATION AND TELLS ITS APPLICATIONS WITH JUSTIFICATIONS, ITS ADVANTADGES AND DISADVANTADGES

5) DEFINE GRAPH AND TELLS ITS APPLICATIONS WITH JUSTIFICATIONS, ITS ADVANTADGES AND DISADVANTADGES

6) DEFINE DFS DIRECTED AND TELLS ITS APPLICATIONS WITH JUSTIFICATIONS, ITS ADVANTADGES AND DISADVANTADGES

7) DEFINE DFS UNDIRECTED AND TELLS ITS APPLICATIONS WITH JUSTIFICATIONS, ITS ADVANTADGES AND DISADVANTADGES