chore: restore original directory structure (project under code-review-graph-main/)

2026-08-31 13:08:20 +08:00
parent ecc55158c1
commit ecfd03a21c
404 changed files with 0 additions and 0 deletions
@@ -0,0 +1,22 @@
+#pragma once
+#include <string>
+
+class Shape {
+public:
+    std::string color;
+
+    Shape(std::string c) : color(c) {}
+    virtual double area() const = 0;
+};
+
+class Circle : public Shape {
+public:
+    double radius;
+
+    Circle(std::string c, double r) : Shape(c), radius(r) {}
+    double area() const override { return 3.14159 * radius * radius; }
+};
+
+inline double perimeter(const Circle& circle) {
+    return 2.0 * 3.14159 * circle.radius;
+}