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/********************************************************************
created: 2008/07/01
created: 1:7:2008 12:49
filename: f:\coding\C++\CSDN_SubList\CSDN_SubList\CSDN_SubList.cpp
file path: f:\coding\C++\CSDN_SubList\CSDN_SubList
file base: CSDN_SubList
file ext: cpp
author: hecan
purpose:
test data "data.txt"
1 2 3
1 4 5
1 6 7
2 4 5
2 6 7
2 2 3
*********************************************************************/
/************************************************************************/
/* =============WinXP Sp2 + VS2003.net Pass==========================*/
/************************************************************************/
#include <fstream>
#include <iostream>
#include <string>
#include <sstream>
#include <list>
#include <algorithm>
using namespace std;
class CData
{
public:
CData(int _m_iA, int _m_iB, int _m_iC):
m_iA(_m_iA), m_iB(_m_iB), m_iC(_m_iC)
{
}
int getA()
{
return m_iA;
}
int getB()
{
return m_iB;
}
int getC()
{
return m_iC;
}
CData()
{
}
bool operator < ( CData &back)
{
return (m_iA < back.getA());
}
bool operator == ( CData &back)
{
return (m_iA == back.getA());
}
CData & operator = (CData & cdCopyData)
{
m_iA = cdCopyData.getA();
m_iB = cdCopyData.getB();
m_iC = cdCopyData.getC();
return *this;
}
friend ostream & operator <<(ostream & os, const CData &data)
{
os << data.m_iA << " "
<< data.m_iB << " "
<< data.m_iC << endl;
return os;
}
public:
int m_iA;
int m_iB;
int m_iC;
};
int main()
{
list< list< CData > > llData;
list< CData > lDataTmp;
ifstream ifsFile("data.txt", ios::in);
if (!ifsFile)
{
cerr << "Error!" <<endl;
}
string sLine;
//取出所有数据
while (getline(ifsFile, sLine))
{
istringstream issLine(sLine);
int a, b, c;
issLine >> a >> b >> c;
CData tmp(a, b, c);
lDataTmp.push_back(tmp);
}
lDataTmp.sort();
cout<<"排序后的原始数据："<<endl;
copy(lDataTmp.begin(), lDataTmp.end(), ostream_iterator< CData >(cout));
cout<<endl;
list< CData > lDataTmpCopy(lDataTmp);//生成一份拷贝用来得到一份唯一的数据
lDataTmpCopy.unique();
list< CData > ld_Tmp2(lDataTmpCopy);
//list< CData > ld_Tmp2(lDataTmp.begin(), unique(lDataTmp.begin(), lDataTmp.end()));
cout<<"去掉重复a的数据："<<endl;
copy(ld_Tmp2.begin(), ld_Tmp2.end(), ostream_iterator< CData >(cout));
cout<<endl;
//////////找到list中a相同的做成一个list插入到以list为节点的list中///////////
while (!ld_Tmp2.empty())
{
list< CData >::iterator front_Iter = find_first_of(lDataTmp.begin(), lDataTmp.end(),
ld_Tmp2.begin(), ld_Tmp2.end());
list< CData >::iterator back_Iter = find_end(lDataTmp.begin(), lDataTmp.end(),
ld_Tmp2.begin(), ld_Tmp2.end());
//链表中的每个节点
list<CData> nodeData(front_Iter, ++back_Iter);
llData.push_back(nodeData);
ld_Tmp2.erase(ld_Tmp2.begin());
}
////////////////////////==test the result==/////////////////////////////////////////////////////////////////
cout <<"用来显示形成链表后的数据：" << endl;
for (list< list< CData > >::iterator LC_Iter = llData.begin(); LC_Iter != llData.end(); ++LC_Iter)
{
copy(LC_Iter->begin(), LC_Iter->end(), ostream_iterator< CData >(cout));
}
return 0;
}
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