#include <iostream>
using namespace std;
#define MaxLength 100

class SequentialList{
private:
    int length;//长度
    int data[MaxLength];
public:
    SequentialList(){
        // 初始化

        this->length = 0;
    };
    // 复制构造函数
    SequentialList(const SequentialList &seq){
        this->length = seq.length;
        for (int i = 0; i < seq.length; ++i) {
            this->data[i] = seq.data[i];
        }
    }

    // 添加
    void add(int value){
        if(this->length<MaxLength){
            data[length++]=value;
        } else{
            cout<<"已满，添加失败"<<endl;
        }
    }
    void del(){
        if(this->length==0){
            cout<<"顺序表为空"<<endl;
            return;
        }
        cout<<"删除成功!"<<endl;
        this->length--;
    }

    // 删除
    void del(int pos){
        for (int i = pos; i < this->length; ++i) {
            this->data[i-1] = this->data[i];
        }
        this->length--;
    };

    void insert(int pos,int value)
    {
        if(this->length>MaxLength){
            cout<<"禁止插入"<<endl;
            return ;
        } else{
            if(pos>0&&pos<this->length){

                for (int i = this->length; i >=pos-1; --i) {
                    this->data[i+1] = this->data[i];
                }
            }
            this->length++;
            this->data[pos-1]=value;
        }

    }
    // 打印
    void printInfo(){
        for (int i = 0; i <this->length; ++i) {
            cout<<data[i]<<endl;
        }
    }

    // 返回顺序表长度
    int getLength(){
        return this->length;
    }
    
    void clear(){
        this->length=0;
    }
    // 获取位置上的数值
    int getValue(int pos){
        return this->data[pos-1];
    }
    // 判断是否为空空
    int isEmpty(){
        
        return this->length==0;
    }
    ~SequentialList(){
        cout<<"释放成功！"<<endl;
    }
};


int main(){
    SequentialList seq = SequentialList();
    for (int i = 0; i <5 ; ++i) {
        seq.add(i);
    }

    seq.printInfo();
    cout<<"长度为:"<<seq.getLength()<<endl;

    seq.del(2);
    seq.printInfo();
    cout<<"长度为:"<<seq.getLength()<<endl;

    seq.insert(2,1);
    seq.printInfo();
    return 0;
}