【leetcode】【单链表】【83】Remove Duplicates from Sorted List

#include<iostream>
#include<stack>
using namespace std;

struct ListNode {
int val;
ListNode *next;
ListNode(int x) : val(x), next(NULL) {}
};

class Solution {
public:
ListNode* deleteDuplicates(ListNode* head) {
if (head == NULL || head->next == NULL)
return head;
ListNode* temp = NULL;
ListNode* cur = head;
while (cur->next){
if (cur->val == cur->next->val){
temp = cur->next;
cur->next = temp->next;
delete temp;
}else
cur = cur->next;
}
return head;
}
ListNode* createList(ListNode* head){
int numOfNode;
int value;
cout << "please input number of listNode:";
cin >> numOfNode;
cin >> value;
head = new ListNode(value);
ListNode* cur = head;
for (int i = 1; i < numOfNode; ++i){
cin >> value;
ListNode* temp = new ListNode(value);
cur->next = temp;
cur = temp;
}
return head;
}
void printNode(ListNode* head){
ListNode* cur = head;
while (cur){
cout << cur->val << " ";
cur = cur->next;
}
cout << endl;
}
};

int main(){
ListNode* head = NULL;
Solution solution;
head = solution.createList(head);
solution.printNode(head);

head = solution.deleteDuplicates(head);
solution.printNode(head);

system("pause");
return 0;
}