Hey Guys! I was just trying out a simple problem to do it in another way. The problem is to convert 2-D array into 1-D array. I know it's very easy but it can be done in many ways and I want to do it in my way.

So I wrote this piece of code but it is giving me errors . Please see it!

#include<iostream>
 
using namespace std;
 
int r, c;
const int * d;
 
void convert(int a, int e, int b[][d]){
	for(int i = 0; i < d; i++){
		cout << b[0][i] << " ";
	}
}
 
int main(){
	cout << "Enter number of rows and columns : " << endl;
	cin >> r >> c;
	int a[r][c];
	for(int i = 0; i < r; i++){
		for(int j = 0; j < c; j++){
			cin >> a[i][j];
		}
	}
	d = new int [r*c];
	convert(r, c, a);
	return 0;
}