#include <iostream>
#include <stdio.h>
using namespace std;
int main(){
double * pdata;
double data[3][5] = {
{1,3,4,5,10},
{7,8,9,10,11},
{2,12,6,15,14}
};
pdata = data[1];
cout<<data[2][4]<<endl;
cout<<pdata[-5]<<endl;
cout<<*(data+1)[1]<<endl;
cout<< pdata--[0]<<endl;
}
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