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<算法编程> 奇偶链表相连

  1 #include<iostream>
  2 using namespace std;
  3 
  4 struct Node
  5 {
  6     int n;
  7     Node* pNext;
  8 };
  9 
 10 Node* AddNode(Node** pHead,Node* pNode)
 11 {
 12     if((*pHead) == NULL)
 13     {
 14         (*pHead) = pNode;
 15     }
 16     else 
 17     {
 18         Node* pEnd = (*pHead);
 19         while(pEnd->pNext != NULL)
 20         {
 21             pEnd = pEnd->pNext;
 22         }
 23         pEnd->pNext = pNode;
 24     }
 25 
 26     return *pHead;
 27 }
 28 
 29 void PrintList(Node* pHead)
 30 {
 31     while(pHead)
 32     {
 33         cout << pHead->n << " ";
 34         pHead = pHead->pNext;
 35     }
 36     cout << endl;
 37 }
 38 
 39 Node* pfun(Node** pHead)
 40 {
 41     Node* p2 = (*pHead)->pNext; //记录第二个元素 即偶的头 以便最后拼接
 42     Node* ptmp = *pHead;
 43     Node* ptmp_move = *pHead;
 44     while(ptmp_move->pNext->pNext) 
 45     {
 46         ptmp_move = ptmp_move->pNext;
 47         ptmp->pNext = ptmp->pNext->pNext;
 48         ptmp = ptmp_move;
 49     }
 50     ptmp_move->pNext = NULL; //记得赋空值
 51 
 52     ptmp = (*pHead);
 53     while(ptmp->pNext)
 54         ptmp = ptmp->pNext;
 55     ptmp->pNext = p2; //遍历找到奇的尾 然后把奇的尾指向偶的头
 56 
 57     return *pHead;
 58 }
 59 
 60 int main()
 61 {
 62     Node* pHead = NULL;
 63 
 64     Node* pNode1 = new Node;
 65     pNode1->n = 1;
 66     pNode1->pNext = NULL;
 67     AddNode(&pHead,pNode1);
 68     Node* pNode2 = new Node;
 69     pNode2->n = 2;
 70     pNode2->pNext = NULL;
 71     AddNode(&pHead,pNode2);
 72     Node* pNode3 = new Node;
 73     pNode3->n = 3;
 74     pNode3->pNext = NULL;
 75     AddNode(&pHead,pNode3);
 76     Node* pNode4 = new Node;
 77     pNode4->n = 4;
 78     pNode4->pNext = NULL;
 79     AddNode(&pHead,pNode4);
 80     Node* pNode5 = new Node;
 81     pNode5->n = 5;
 82     pNode5->pNext = NULL;
 83     AddNode(&pHead,pNode5);
 84     Node* pNode6 = new Node;
 85     pNode6->n = 6;
 86     pNode6->pNext = NULL;
 87     AddNode(&pHead,pNode6);
 88     Node* pNode7 = new Node;
 89     pNode7->n = 7;
 90     pNode7->pNext = NULL;
 91     AddNode(&pHead,pNode7);
 92     Node* pNode8 = new Node;
 93     pNode8->n = 8;
 94     pNode8->pNext = NULL;
 95     AddNode(&pHead,pNode8);
 96     
 97     PrintList(pHead);
 98     pHead = pfun(&pHead);
 99     PrintList(pHead);
100 
101     system("pause");
102     return 0;
103 }

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原文地址：https://www.cnblogs.com/Aaaaaalei0612/p/11218810.html