Refactor code structure for improved readability and maintainability

Author: Sumit tripathi

DSATRAINING.cpp

@@ -0,0 +1,79 @@
+#include <iostream>
+using namespace std;
+class Complex
+{
+private:
+    float real;
+    float imag;
+public:
+    // Constructor
+    Complex(float r = 0, float i = 0)
+    {
+        real = r;
+        imag = i;
+    }
+
+    // Overload + operator (member function)
+    Complex operator+(const Complex &other) const
+    {
+        return Complex(real + other.real, imag + other.imag);
+    }
+
+    // Overload == operator (member function)
+    bool operator==(const Complex &other) const
+    {
+        return (real == other.real && imag == other.imag);
+    }
+
+    // Overload << operator (friend function)
+    friend ostream &operator<<(ostream &out, const Complex &c);
+
+    // Overload >> operator (friend function)
+    friend istream &operator>>(istream &in, Complex &c);
+};
+
+// Definition of << operator
+ostream &operator<<(ostream &out, const Complex &c)
+{
+    out << c.real << " + " << c.imag << "i";
+    return out;
+}
+
+// Definition of >> operator
+istream &operator>>(istream &in, Complex &c)
+{
+    cout << "Enter real part: ";
+    in >> c.real;
+    cout << "Enter imaginary part: ";
+    in >> c.imag;
+    return in;
+}
+
+// Main function
+int main()
+{
+    Complex c1, c2;
+
+    cout << "Enter first complex number:\n";
+    cin >> c1;
+
+    cout << "\nEnter second complex number:\n";
+    cin >> c2;
+
+    Complex sum = c1 + c2;
+
+    cout << "\nFirst complex number: " << c1 << endl;
+    cout << "Second complex number: " << c2 << endl;
+    cout << "Sum: " << sum << endl;
+
+    if (c1 == c2)
+    {
+        cout << "Both complex numbers are equal.\n";
+    }
+    else
+    {
+        cout << "Complex numbers are different.\n";
+    }
+
+    return 0;
+}