Giới thiệu
include <iostream>
using namespace std;
int main() {
int num;
cout << "Nhap vao mot so nguyen co 3 chu so: ";
cin >> num;
int hangTram = num / 100;
int hangChuc = (num % 100) / 10;
int hangDonVi = num % 10;
cout << "Chu so hang tram: " << hangTram << endl;
cout << "Chu so hang chuc: " << hangChuc << endl;
cout << "Chu so hang don vi: " << hangDonVi << endl;
return 0;
}