still not working but close

amazon.cpp

@@ -726,13 +726,44 @@ public:
 class Solution {
 public:
     bool canFinish(int numCourses, vector<vector<int>>& prerequisites) {
-        vector<bool> vect(numCourse, true);
-        
-        
-        
-        
-        
+        cout<<"here"<<endl;
+        vector<vector<int>> graph = graph_maker(numCourses, prerequisites);
+cout<<"here"<<endl;
+        stack<int> visiting;
+        unordered_set<int> set_visiting;
+        unordered_set<int> visited;
+
+        visiting.push(0);
+        set_visiting.insert(0);
+
+        while(!set_visiting.empty()){
+          int current = visiting.top();
+            cout<<current<<endl;
+          visiting.pop();
+          set_visiting.erase(current);
+          visited.insert(current);
+          for(int i=0; i<graph[current].size(); i++){
+            int neigh = graph[current][i];
+
+            if(visited.find(neigh) != visited.end() || visited.find(neigh) != set_visiting.end()) return false;
+            visiting.push(neigh);
+            set_visiting.insert(neigh);
+          }
+        }
+      return true;
     }
+
+  vector<vector<int>> graph_maker(vector<vector<int>>& prerequisites){
+    vector<vector<int>> graph(prerequisites.size());
+    for(auto v: prerequisites){
+      graph[v[0]].push_back(v[1]]);
+    }
+    return graph;
+  }
+
+
+
+
 };