使用vector<vector<int>>实现的一个二维数组

本文为大大维原创，最早于博客园发表，转载请注明出处！！！
 1 #include<iostream>
#include<vector>
using namespace std;
int main()
{
    typedef vector<int> COL;
    typedef vector<COL> ROW;

    COL vecCol;
    ROW vecRow;
    int in,cCnt{0},rCnt{0};
    while(1)
    {
        while(1)
        {
            cout<<"input "<<rCnt<<"."<<cCnt++<<"(<0 stop):"<<endl;
            cin>>in;
            if(in<0)break;
            else vecCol.push_back(in);
        }
        if(!vecCol.empty())
        {
            vecRow.push_back(vecCol);
            vecCol.clear();
            ++rCnt;
        }
        cCnt=0;
        cout<<"is Continue(<0 stop):"<<endl;
        cin>>in;
        if(in<0)break;
    }
    for(auto row:vecRow)
    {
        for(auto col:row)
            cout<<col<<"  ";
        cout<<endl;
    }
}