修了些bug

homework5/Graph.h

@@ -30,7 +30,7 @@ private:
         T weight;
         struct node* next;
     };
-    vector<node> nodes;
+    vector<node*> nodes;
     int max_size;
 
 public:
@@ -40,11 +40,12 @@ public:
     }
     void insert(T data) {
         max_size++;
-        node insert = new node();
+        node* insert = new node();
         insert->data=max_size;
         insert->weight = 0;
         insert->next=new node();
         insert->next->data=data;
+        insert->next->next=NULL;
         nodes.push_back(insert);
     }
     void connect(int id1,int id2,bool flag,T weight=0) {   //flag区分是否为有向图

homework5/test1.cpp

@@ -25,4 +25,5 @@
 using namespace std;
 
 int main() {
+    return 0;
 }