mirror of
https://github.com/This-weiyuqing/DSAndOS.git
synced 2026-10-17 18:55:44 +08:00
110 lines
1.9 KiB
C++
110 lines
1.9 KiB
C++
#include<iostream>
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#include<fstream>
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#include<string>
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using namespace std;
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#define ERROR 0
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typedef struct LNode {
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int data; //结点的数据域
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struct LNode *next; //结点的指针域
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} LNode, *List; //LinkList为指向结构体LNode的指针类型
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int n, m;
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char st = 'A';
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void InitList(List &L) //创建链表
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{
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L = new LNode;
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L->next = NULL;
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}
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void ListInput(List &L, int n) //链表数据的输入
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{
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int i;
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List p, r;
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r = L;
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char filename[20] = { 0 };
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cout << "请输入顺序表L" << st << "的数据文件名称(文件名+“.txt”,如List" << st << ".txt):" << endl;
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++st;
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gets(filename);
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fstream file;
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file.open(filename);
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if (!file) {
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cout << "未找到相关文件,无法打开!" << endl;
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exit(ERROR);
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}
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while (!file.eof()) {
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p = new LNode;
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file >> p->data;
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p->next = NULL;
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r->next = p;
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r = p;
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n++;
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}
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file.close();
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}
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bool LocateElem(List L, int e) //判断List里有没有e这个元素
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{
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List p;
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p = L->next;
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while (p != NULL) {
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if (p->data == e)
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return true;
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p = p->next;
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}
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return false;
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}
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void ListInsert(List &L, int e) //将e插入到List中
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{
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List p;
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p = new LNode;
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p->data = e;
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p->next = L->next;
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L->next = p;
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}
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void ListOutput(List L) //输出List
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{
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List p;
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p = L->next;
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while (p != NULL) {
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cout << p->data << " ";
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p = p->next;
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}
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cout << endl;
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}
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void unionList(List &LA, List LB) //算法2.15 线性表的合并(链表)
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{
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//将所有在线性表LB中但不在LA中的数据元素插入到LA中
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int e;
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List p;
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p = LB->next;
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while (p != NULL) {
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e = p->data;
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if (!LocateElem(LA, e)) //LA中不存在和e相同的数据元素,则插入之
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ListInsert(LA, e);
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p = p->next;
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}
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} //unionList
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int main() {
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List LA, LB;
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InitList(LA);
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InitList(LB);
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ListInput(LA, n);
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ListInput(LB, m);
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unionList(LA, LB);
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cout << "LA和LB合并后的集合为:\n";
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ListOutput(LA);
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return 0;
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}
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