Пожалуйста, расскажите мне сухой прогон этого кода в комментариях

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#include <iostream>
#include <ctime>
#include <windows.h>
#include <stdlib.h>
using namespace std;
 
int FINISH;
void drawhorses(int * Horses,int m)
{
	int a=0;
	for (int i = 0; i <=m; i++)
	{
		if (i % 2 == 1)
		{
			cout << "[" << a << "]";
			++a;
			for (int k = Horses[i]; k < FINISH; k++)
			{
				cout << " | ";
			}
			for (int k = 0; k < Horses[i]; k++)
			{
				cout << " ";
			}
			cout << endl;
		}
		else
		{
			for (int k = 0; k <= FINISH; k++)
			{
				cout << " | ";
			}
			cout << endl;
		}
	}
}
void draw(int * Horses, int m)
{
	int b = 0;
	system("cls");
	for (int i = 0; i<=m; i++)
	{
		if (i % 2 == 1)
		{
			for (int k = Horses[i]; k>0; k--)
			{
				cout << "   ";
			}
			cout << "[" << b << "]";
			++b;
			for (int k = Horses[i]; k < FINISH; k++)
			{
				cout << " | ";
			}
			cout << endl;
		}
		else
		{
			for (int k = 0; k <= FINISH; k++)
			{
				cout << " | ";
			}
			cout << endl;
		}
	}
}
 
int main()
{
	int Nohorses,n=0;
	cout << "Enter the number of horses: ";
	cin >> Nohorses;
	system("cls");
	int dist;
	cout << "Enter the distance in forlong form 6 to 12: ";
	cin >> dist;
	FINISH = dist * 3;
	n = Nohorses * 2;
	system("cls");
	int *ptr;
	ptr = new int[n];
	srand(time(NULL));
	for (int i = 0; i<n; i++)
	{
		ptr[i] = 0;
	}
	drawhorses(ptr, n);
	int x = 0;
	bool end = false;
	while (!end)
	{
		Sleep(800);
		system("cls");
		for (int i = 0; i<n; i++)
		{
			x = i;
			ptr[i] += rand() % 2;
			if (ptr[i] >= FINISH)
			{
				end = true;				
			}
		}
		cout << "\n\n";
		draw(ptr, n);
	}
	delete ptr;
	system("cls");
	cout << "Horse number " << x/2 << " Won the race" << endl;
	system("pause");
	return 0;
}

Что я уже пробовал:

#include <iostream>
#include <ctime>
#include <windows.h>
#include <stdlib.h>
using namespace std;
 
int FINISH;
void drawhorses(int * Horses,int m)
{
	int a=0;
	for (int i = 0; i <=m; i++)
	{
		if (i % 2 == 1)
		{
			cout << "[" << a << "]";
			++a;
			for (int k = Horses[i]; k < FINISH; k++)
			{
				cout << " | ";
			}
			for (int k = 0; k < Horses[i]; k++)
			{
				cout << " ";
			}
			cout << endl;
		}
		else
		{
			for (int k = 0; k <= FINISH; k++)
			{
				cout << " | ";
			}
			cout << endl;
		}
	}
}
void draw(int * Horses, int m)
{
	int b = 0;
	system("cls");
	for (int i = 0; i<=m; i++)
	{
		if (i % 2 == 1)
		{
			for (int k = Horses[i]; k>0; k--)
			{
				cout << "   ";
			}
			cout << "[" << b << "]";
			++b;
			for (int k = Horses[i]; k < FINISH; k++)
			{
				cout << " | ";
			}
			cout << endl;
		}
		else
		{
			for (int k = 0; k <= FINISH; k++)
			{
				cout << " | ";
			}
			cout << endl;
		}
	}
}
 
int main()
{
	int Nohorses,n=0;
	cout << "Enter the number of horses: ";
	cin >> Nohorses;
	system("cls");
	int dist;
	cout << "Enter the distance in forlong form 6 to 12: ";
	cin >> dist;
	FINISH = dist * 3;
	n = Nohorses * 2;
	system("cls");
	int *ptr;
	ptr = new int[n];
	srand(time(NULL));
	for (int i = 0; i<n; i++)
	{
		ptr[i] = 0;
	}
	drawhorses(ptr, n);
	int x = 0;
	bool end = false;
	while (!end)
	{
		Sleep(800);
		system("cls");
		for (int i = 0; i<n; i++)
		{
			x = i;
			ptr[i] += rand() % 2;
			if (ptr[i] >= FINISH)
			{
				end = true;				
			}
		}
		cout << "\n\n";
		draw(ptr, n);
	}
	delete ptr;
	system("cls");
	cout << "Horse number " << x/2 << " Won the race" << endl;
	system("pause");
	return 0;
}

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