代码改变世界

顺序表

2012-04-08 22:42  Rollen Holt  阅读(2531)  评论(0编辑  收藏  举报
Seqlist.h

const int DefaultSize=100;

template <typename Type> class SeqList{
public:
	SeqList(int sz=DefaultSize)
		:m_nmaxsize(sz),m_ncurrentsize(-1){
		if(sz>0){
			m_elements=new Type[m_nmaxsize];
		}
	}
	~SeqList(){
		delete[] m_elements;
	}
	int Length() const{					//get the length
		return m_ncurrentsize+1;
	}
	int Find(Type x) const;				//find the position of x
	int IsElement(Type x) const;		//is it in the list
	int Insert(Type x,int i);			//insert data
	int Remove(Type x);					//delete data
	int IsEmpty(){
		return m_ncurrentsize==-1;
	}
	int IsFull(){
		return m_ncurrentsize==m_nmaxsize-1;
	}
	Type Get(int i){					//get the ith data
		return i<0||i>m_ncurrentsize?(cout<<"can't find the element"<<endl,0):m_elements[i];
	}
	void Print();

private:
	Type *m_elements;
	const int m_nmaxsize;
	int m_ncurrentsize;
};

template <typename Type> int SeqList<Type>::Find(Type x) const{
	for(int i=0;i<m_ncurrentsize;i++)
		if(m_elements[i]==x)
			return i;
	cout<<"can't find the element you want to find"<<endl;
	return -1;
}

template <typename Type> int SeqList<Type>::IsElement(Type x) const{
	if(Find(x)==-1)
		return 0;
	return 1;
}

template <typename Type> int SeqList<Type>::Insert(Type x, int i){
	if(i<0||i>m_ncurrentsize+1||m_ncurrentsize==m_nmaxsize-1){
		cout<<"the operate is illegal"<<endl;
		return 0;
	}
	m_ncurrentsize++;
	for(int j=m_ncurrentsize;j>i;j--){
		m_elements[j]=m_elements[j-1];
	}
	m_elements[i]=x;
	return 1;
}

template <typename Type> int SeqList<Type>::Remove(Type x){
	int size=m_ncurrentsize;
	for(int i=0;i<m_ncurrentsize;){
		if(m_elements[i]==x){
			for(int j=i;j<m_ncurrentsize;j++){
				m_elements[j]=m_elements[j+1];
			}
			m_ncurrentsize--;
			continue;
		}
		i++;
	}
	if(size==m_ncurrentsize){
		cout<<"can't find the element you want to remove"<<endl;
		return 0;
	}
	return 1;
}

template <typename Type> void SeqList<Type>::Print(){
	for(int i=0;i<=m_ncurrentsize;i++)
		cout<<i+1<<":\t"<<m_elements[i]<<endl;
	cout<<endl<<endl;
}

Test.cpp
#include <iostream>
#include "SeqList.h"

using namespace std;

int main()
{
	SeqList<int> test(15);
	int array[15]={2,5,8,1,9,9,7,6,4,3,2,9,7,7,9};
	for(int i=0;i<15;i++){
		test.Insert(array[i],0);
}
	test.Insert(1,0);
	cout<<(test.Find(0)?"can't be found ":"Be found ")<< 0 << endl<<endl;
	test.Remove(7);
	test.Print();
	test.Remove(9);
	test.Print();
	test.Remove(0);
	test.Print();
	return 0;
}