I begin create a Graph structure

src/main.rs

@@ -0,0 +1,53 @@
+mod graph {
+
+    use std::collections::{HashMap, HashSet};
+    use std::vec::Vec;
+
+    pub struct Graph {
+        frame_graph : HashMap<u32, Vec<u32>>,
+        flags_graph : HashSet<(u32, bool)>
+    }
+
+    impl Graph {
+
+        pub fn new() -> Graph {
+            Graph{
+                frame_graph : HashMap::new(),
+                flags_graph : HashSet::new(),
+            }
+        }
+
+        pub fn add(&mut self, parent : u32, children : Vec<u32>){
+
+            self.frame_graph.insert(parent, children);
+            self.flags_graph.insert((parent, false));
+            for &i in self.frame_graph.get(&parent).unwrap() {
+                self.flags_graph.insert((i, false));
+            }
+
+        }
+
+        pub fn get(&self) -> &Graph {
+            self.clone()
+        }
+
+    }
+}
+
+mod new_class{
+
+    use super::graph;
+
+}
+
+
+fn main(){
+
+    use crate::graph::Graph;
+
+    let mut graph : Graph = Graph::new();
+    graph.add(1, vec![2, 3, 4]);
+    graph.add(2, vec![9, 7, 6, 1]);
+    graph.add(6, vec![12, 11, 19]);
+
+}