Delete and invert "1234ssc.com" in C + + for linked list

On the operation of linked list in MFC project

1. For a given integer n, the write algorithm deletes the nth node in the list, and the first node of the list is pointed to by a.

Since there is no standard header file for node in C + +, to define the node class manually, only the simple data and next pointers and the contents of the destructor section are defined here:

 1 class node 2 {3 public:4 node (const int &in,node *nextnode =virtual ~node ();  6 Node*next; 7 int Data; 8 9};             

You can define a node after #include "Node.h".

1 node *p1,*p2,*P3;  2     p1=new node (1);  3 p2=new node (2, p1);  4 p3=new node (3,p2);           

The list of links defined here is shown below:

P3-->p2-->p1

3-->2-->1

About the definition of the Erasevalue function:

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1 Template <typename t>2void Erasevalue (Node*first,Const t&N3{4 node *curr=first,*pre=NULL;5if (n==1)6{7 first=first->Next8Delete Curr;}10 else {for (int i=1;i <n;i++)  {12 pre=curr; Curr=curr->next; }15 16 pre->next= Curr->next;  delete curr;} 18 19}        

function call and output (change):

When the n=1 will be error, to be resolved.

1 node *cur=P3;2 3  CString temp,str; 4 null)  5  { 6 temp. Format ( "%d ",cur-> data);  7 Str+=temp; 8 cur=cur- >next; 9 }10 AfxMessageBox (str);               

2. Write an algorithm to reverse the list, do not copy the list elements, but instead reset the links and pointers, so that first points to the original last node, and all links between the nodes are reversed.

Test without output:

1 Template <typename t>2void reverse (Node*first,Const t&N3{4 node *front=NULL;5Forint i=0;i<n-1;i++)6{7 Node *curr=first,*pre=NULL;8while (curr->next!=NULL)9{Ten pre=Curr11 curr=curr->next;13 }14 if (I==0&&curr->next==null) Front=curr;< Span style= "color: #008080;" >15 pre->next=null; Curr->next=pre; }18 if (I=n-1) First->next=front; Front=first;                 

Beginner C + + and data structure, there are errors please even point out , thank you!!

Delete and invert "1234ssc.com" in C + + for linked list