I want to copy the value of the digits pointer to the Encoded Matrix.The Problem is when i run the program it takes input but break while coping the values. Thanks in Advance for Help :)

#include<iostream>
#include<Digits_To_Letter_Converter.h>
#include<Size_Decider.h>

using namespace std;

int main()
{
int size=0,Encoded_Matrix_Column=1;
cout<<"Enter The Number of Digits ";
cin>>size;

int *Digits= NULL;
Digits = new int[size];

//Intilization Of Digits Array
for(int i=0;i<size;i++)
{
Digits[i] = NULL;
}

Encoded_Matrix_Column = matrix_size_checker(size,Encoded_Matrix_Column);
cout<<"It Has "<<Encoded_Matrix_Column<<endl;
// Input fro the user to enter the Digits for Further Process
for(int i=0;i<size;i++)
{
cout<<"Enter The Digit "<<i+1;
cin>>Digits[i];
}

int **Encoded_Matrix = new int*[size],u=0;


for(int i=0;i<Encoded_Matrix_Column;i++)
{
for(int j=0;j<3;j++)
{
Encoded_Matrix[i][j] = Digits[u];
u++;
}
}
for(int i=0;i<Encoded_Matrix_Column;i++)
{
for(int j=0;j<3;j++)
{
cout<<Encoded_Matrix[i][j]<<" " ;
}
cout<<endl;
}
}