[백준] 2588: 곱셈

2588번: 곱셈

#include <iostream>
int main() {
	using namespace std;
	ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
	int a, b; cin >> a >> b;
	int digit_1, digit_2, digit_3;
	digit_1 = b % 10;
	digit_2 = b % 100 - digit_1;
	digit_3 = b - digit_2-digit_1;

	cout << digit_1 * a << "\n";
	cout << digit_2 * a / 10 << "\n";
	cout << digit_3 * a  / 100<< "\n";
	cout << a * b;
	return 0;
}