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#include <iostream>
using namespace std;
void realloc1(int**data,const int size);
int main()
{
int * old = new int [10]{1};
for(int i=0;i<10;i++) old[i]=i;
for(int i=0;i<10;i++) cout<<old[i]<<' ';
cout << "<-main" << endl;
delete []old;
int * newone = new int [20]{1};
old=newone;
for(int i=0;i<20;i++) old[i]=i*2;
for(int i=0;i<20;i++) cout<<old[i]<<' ';
cout << "<-main!" << endl;
realloc1(&old,15);
for(int i=0;i<15;i++) cout<<old[i]<<' ';
cout << "<-main realoc1!" << endl;
delete [] old;
return 0;
}
void realloc1(int**data,const int size)
{
delete []*data ;
int * newone = new int [size]{};
for(int i=0;i<size;i++) newone[i]=i*3;
*data=newone;
}
