#include <iostream> #include <string> #include <iomanip> #define MAXSIZE 11 using namespace std; struct Node { string elem; int next; }; class StaticLinkList { private: Node space[MAXSIZE]; //表头节点:1 //备用链表表头节点:0 //NULL :0 int length; public: StaticLinkList()//初始化链表 { length = 0; space[1].next = 0;//带表头节点的空链表 space[0].next = 2;//构成空闲链接表 for (int i = 2; i < MAXSIZE - 1; i++) { space[i].next = i + 1; } space[MAXSIZE - 1].next = 0; } void Show() { for (int i = 0; i < MAXSIZE; i++) { cout << setiosflags(ios::left); cout << setw(8) << space[i].elem; cout << setiosflags(ios::right); cout << setw(2) << space[i].next << endl; cout << resetiosflags(ios::right); } cout << "********************" << endl; } int FindPrior(int a)//找到第a个节点的前一个节点 { int prior = 1; while (--a) { prior = space[prior].next; } return prior; } int Malloc() { int i = space[0].next; if (i) space[0].next = space[space[0].next].next;//备用链表删去一个节点 return i;//返回分配的节点下标 } void Free(int a)//将下标为a的空闲节点回收到备用链表 { space[a].next = space[0].next; space[0].next = a; } void Insert(int a, string e) { int priorNode = FindPrior(a); int newNode = Malloc(); space[newNode].elem = e; space[newNode].next = space[priorNode].next; space[priorNode].next = newNode; } void Delete(int a) { int priorNode = FindPrior(a); int del = space[priorNode].next; space[priorNode].next = space[del].next; Free(del); } void Search(string e) { int i = space[1].next; while (i) { if (space[i].elem == e) { cout << setiosflags(ios::right) << setw(2) << i << endl; cout << "********************" << endl; return; } i = space[i].next; } } }; int main() { StaticLinkList sl; string select; while (cin >> select) { if (select == "show") { sl.Show(); } else if (select == "insert") { int a; string e; cin >> a >> e; sl.Insert(a, e); } else if (select == "delete") { int a; cin >> a; sl.Delete(a); } else if (select == "search") { string e; cin >> e; sl.Search(e); } } return 0; }
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