K546206

#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;

class SoPhuc {
protected:
    double thuc;
    double ao;
public:

K546206

#include <iostream>
#include <algorithm>
using namespace std;

class PhanSo {
protected:
    int tu, mau;
public:
    PhanSo() {
        tu = 0;