• 【C++/数据结构】顺序表的基本操作


    <span style="font-size:18px;"><strong>#pragma once
    #include <iostream>
    using namespace std;
    
    typedef enum { FALSE, TRUE }Status;
    
    template<class Type>
    class SeqList
    {
    public:
    	SeqList(int sz = DefaultSize)
    	{
    		capacity = sz > DefaultSize ?

    sz : DefaultSize; base = new Type[capacity]; size = 0; } ~SeqList() { destroy(); /* delete []base; base = NULL; capacity = size = 0;*/ } public: Status Inc() { Type *newbase = new Type[capacity + INC_SIZE]; if (newbase == NULL) { return FALSE; } memcpy(newbase, base, sizeof(Type)*size); delete[]base; base = newbase; capacity += INC_SIZE; return TRUE; } Status merge(SeqList<Type> <1, SeqList<Type> <2) { int i = 0; int j = 0; int k = 0; while (i < lt1.size && j < lt2.size) { if (lt1.base[i] > lt2.base[j]) { base[k++] = lt2.base[j++]; } else { base[k++] = lt1.base[i++]; } } while(i < lt1.size) { base[k++] = lt1.base[i++]; } while (j < lt2.size) { base[k++] = lt2.base[j++]; } size = lt1.size + lt2.size; return TRUE; } Status IsFull() const { if (size >= capacity) { return TRUE; } else { return FALSE; } } Status Empty() const { if (size == 0) { return TRUE; } else { return FALSE; } } Status push_back(const Type& x) { if (IsFull() && !Inc()) { cout << "IsFull!不能尾插" << x << endl; return FALSE; } base[size++] = x; return TRUE; } Status push_front(const Type& x) { if (IsFull() && !Inc()) { cout << "IsFull!不能头插" << x << endl; return FALSE; } for (int i = size; i > 0; --i) { base[i] = base[i - 1]; } base[0] = x; size++; return TRUE; } Status pop_back() { if (Empty()) { cout << "Empty!不能尾删" << endl; return FALSE; } size--; return TRUE; } Status pop_front() { if (Empty()) { cout << "Empty!不能头删" << endl; return FALSE; } for (int i = 0; i < size; ++i) { base[i] = base[i + 1]; } size--; return TRUE; } Status insert_val(const Type& x) { if (IsFull() && !Inc()) { cout << "IsFull!不能按值插入" << x << endl; return FALSE; } int i = 0; while (base[i] < x && i < size) { i++; } insert_pos(i, x); return TRUE; } Status insert_pos(int pos, const Type& x) { if (IsFull() && !Inc()) { cout << "IsFull! 不能按位置插入" << endl; return FALSE; } if (pos < 0 || pos > size) { return FALSE; } for (int i = 0; i < size; ++i) { if (i == pos) { for (int j = size; j > i; --j) { base[j] = base[j - 1]; } } } base[pos] = x; size++; return TRUE; } int find(const Type& x) { if (size == 0) { return -1; } for (int i = 0; i < size; ++i) { if (base[i] == x) { return i; } } } Status delete_pos(int pos) { if (pos < 0 || pos > size) { return FALSE; } for (int i = 0; i < size; ++i) { if (i == pos) { for (int j = i; j < size; ++j) { base[j] = base[j + 1]; } break; } } size--; return TRUE; } Status delete_val(const Type& x) { int key = find(x); if (key == -1) { return FALSE; } delete_pos(key); return TRUE; /*if(Empty()) { cout << "Empty!" << endl; return FALSE; } for(int i = 0; i < size; ++i) { if(base[i] == x) { for(int j = i; j < size; ++j) { base[j] = base[j+1]; } break; } } size--; return TRUE;*/ } void sort() { if (size == 0 || size == 1) { return; } for (int i = 0; i < size - 1; ++i) { for (int j = 0; j < size - i - 1; ++j) { if (base[j] > base[j + 1]) { int tmp = base[j]; base[j] = base[j + 1]; base[j + 1] = tmp; } } } } void resver() { if (size == 0 || size == 1) { return; } for (int i = 0, j = size - 1; i < j; ++i, --j) { int tmp = base[i]; base[i] = base[j]; base[j] = tmp; } } int length() { return size; } void clear() { size = 0; } Status destroy() { if (base == NULL) { return FALSE; } delete[]base; base = NULL; size = capacity = 0; return TRUE; } Status modify_val(const Type& x, const Type& y) { int key = find(x); if (key == -1) { return FALSE; } modify_pos(key, y); return TRUE; } Status modify_pos(int pos, const Type& x) { if (pos < 0 || pos > size) { return FALSE; } for (int i = 0; i < size; ++i) { if (i == pos) { base[i] = x; } } return TRUE; } void show_list() { for (int i = 0; i < size; ++i) { cout << base[i] << ' '; } cout << endl; } private: enum {DefaultSize = 20, INC_SIZE = 3}; Type *base; int capacity; int size; };</strong></span>


    <span style="font-size:18px;"><strong>#include "SeqList.h"
    
    void main()
    {
    	SeqList<int> It1;
    	SeqList<int> It2;
    	SeqList<int> mylist;
    
    	int select = 1;
    	int pos;
    	int item;
    	system("Color 0d");
    	while (select)
    	{
    		cout << "************************************" << endl;
    		cout << "* [0]  quit_system [1] push_back   *" << endl;
    		cout << "* [2]  push_front  [3] show_list   *" << endl;
    		cout << "* [4]  pop_back    [5] pop_front   *" << endl;
    		cout << "* [6]  insert_val  [7] insert_pos  *" << endl;
    		cout << "* [8]  find        [9] delete_pos  *" << endl;
    		cout << "* [10] delete_val [11] sort        *" << endl;
    		cout << "* [12] resver     [13] length      *" << endl;
    		cout << "* [14] clear      [15] destroy     *" << endl;
    		cout << "* [16] modify_val [17] modify_pos  *" << endl;
    		cout << "* [18] merge                       *" << endl;
    		cout << "************************************" << endl;
    		cout << "请选择:>";
    		cin >> select;
    		switch (select)
    		{
    		case 1:
    			cout << "请输入要插入的数据(-1结束):>";
    			while (cin >> item, item != -1)
    			{
    				mylist.push_back(item);
    			}
    			break;
    		case 2:
    			cout << "请输入要插入的数据(-1结束):>";
    			while (cin >> item, item != -1)
    			{
    				mylist.push_front(item);
    			}
    			break;
    		case 3:
    			system("cls");
    			mylist.show_list();
    			system("pause");
    			break;
    		case 4:
    			mylist.pop_back();
    			break;
    		case 5:
    			mylist.pop_front();
    			break;
    		case 6:
    			cout << "请输入要插入的值:>";
    			cin >> item;
    			mylist.insert_val(item);
    			break;
    		case 7:
    			cout << "请输入要插入的值的下标:>";
    			cin >> pos;
    			cout << "请输入要插入的值";
    			cin >> item;
    			mylist.insert_pos(pos, item);
    			break;
    		case 8:
    			cout << "请输入要查找的值:>";
    			cin >> item;
    			cout << "该值下标为:" << mylist.find(item) << endl;
    			break;
    		case 9:
    			cout << "请输入要删除的值的下标:>";
    			cin >> item;
    			mylist.delete_pos(item);
    			break;
    		case 10:
    			cout << "请输入要删除的值:>";
    			cin >> item;
    			mylist.delete_val(item);
    			break;
    		case 11:
    			mylist.sort();
    			break;
    		case 12:
    			mylist.resver();
    			break;
    		case 13:
    			cout << "线性表的长度为:" << mylist.length() << endl;
    			break;
    		case 14:
    			mylist.clear();
    			break;
    		case 15:
    			mylist.destroy();
    			break;
    		case 16:
    			cout << "请输入要改动的值:>";
    			cin >> item;
    			cout << "请输入改动后的值:>";
    			cin >> pos;
    			mylist.modify_val(item, pos);
    			break;
    		case 17:
    			cout << "请输入要改动的值的下标:>";
    			cin >> pos;
    			cout << "请输入改动后的值:>";
    			cin >> item;
    			mylist.modify_pos(pos, item);
    			break;
    		case 18:
    			for (int i = 1; i < 10; i += 2)
    			{
    				It1.push_back(i);
    			}
    			for (int i = 2; i <= 10; i += 2)
    			{
    				It2.push_back(i);
    			}
    			mylist.merge(It1, It2);
    			mylist.show_list();
    		default:
    			break;
    		}
    	}
    }
    
    	</strong></span>

    执行结果例如以下:





  • 相关阅读:
    uva 10369 Arctic Network
    uvalive 5834 Genghis Khan The Conqueror
    uvalive 4848 Tour Belt
    uvalive 4960 Sensor Network
    codeforces 798c Mike And Gcd Problem
    codeforces 796c Bank Hacking
    codeforces 768c Jon Snow And His Favourite Number
    hdu 1114 Piggy-Bank
    poj 1276 Cash Machine
    bzoj 2423 最长公共子序列
  • 原文地址:https://www.cnblogs.com/lxjshuju/p/6984866.html
Copyright © 2020-2023  润新知