what is wrong in this piace of code?

#include <iostream>

using namespace std;

int main()
{
long **d1;
for (int i=0;i<10;i++)
for (int j=0;j<10;j++)
{
d1[i][j]=0;
cout<<d1[i];
}
}

helios (17574)

d1 points to nowhere.

Dom87 (3)

the build is ok. but while calculating when i became 1 it crash.
what i have to do for creating a matrix of zero using pointer **d1

moorecm (1932)

Dom87 (3)

ok thanks

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