#include <iostream.h>
#include <fstream.h>
#include <apvector.h>

void compact (apvector<int> &list,int &N);

void main (void) {
	ifstream infile ("numbers.txt",ios::in);
	apvector<int> list(0);
	int x,n = 0;

	while (infile >> x) {
		list.resize(list.length()+1);
		list[list.length()-1] = x;
		n++;
	}
	
	cout << "Before : \n" << list[0];
	for (int y = 1;y < list.length();y++) {
		cout << "," << list[y];
	}
	compact (list,n);
	cout << "\n\nAfter : \n" << list[0];
	for (y = 1;y < list.length();y++) {
		cout << "," << list[y];
	}
	cout << "\n\n";
}	

void compact (apvector<int> &list,int &n) {
	int diff = 0;
	for (int y = 0;y < list.length();y++) {
		list[y - diff] = list[y];
		if (list[y] == 0) diff++;
	}
	list.resize(list.length() - diff);
}