168 Done

2. Bai168/Source.cpp

@@ -1,8 +1,54 @@
 #include <iostream>
 using namespace std;
+struct DaThuc
+{
+	float a[100];
+	int n;
+};
+typedef struct DaThuc DATHUC;
+
+void Nhap(DATHUC &);
+void Xuat(DATHUC);
+DATHUC operator+(DATHUC, DATHUC);
 
 int main()
 {
+	DATHUC P;
+	Nhap(P);
+
+	DATHUC Q;
+	Nhap(Q);
+
+	DATHUC R = P + Q;
+	Xuat(R);
 
 	return 0;
+}
+
+void Nhap(DaThuc &P)
+{
+	cout << "Nhap bac da thuc: ";
+	cin >> P.n;
+	for (int i = 0; i <= P.n; i++)
+	{
+		cout << "Nhap he so a[" << i << "]: ";
+		cin >> P.a[i];
+	}
+}
+
+void Xuat(DATHUC P)
+{
+	cout << "\nDa thuc: ";
+	for (int i = 0; i <= P.n; i++)
+		cout << P.a[i] << "x^" << i << " + ";
+	cout << "\b\b\b  ";
+}
+
+DATHUC operator+(DATHUC P, DATHUC Q)
+{
+	DATHUC temp;
+	temp.n = (P.n > Q.n) ? P.n : Q.n;
+	for (int i = 0; i <= temp.n; i++)
+		temp.a[i] = P.a[i] + Q.a[i];
+	return temp;
 }