Simple Loading bar in c++

loadingBar.cpp

#define COUNTER_TIME_S 10
#define DELAY_MS 1000

#include <windows.h>
#include <iostream>

void clearScreen(int characterLength) {
	for (int i=0; i<characterLength; i++) {
		std::cout << "\b";
	}
}

int main() {
	for (int i=0; i<COUNTER_TIME_S; i++) {
		std::cout << "[";
		for (int j=0; j<i; j++) {std::cout << "#";}
		for (int j=(COUNTER_TIME_S-i); j>0; j--) {std::cout << " ";}
		std::cout << "]";
		Sleep(DELAY_MS);
		clearScreen(COUNTER_TIME_S+2);
	}
	return 0;
}