labs 1-6: init

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

lab1/2.cpp

@@ -0,0 +1,28 @@
+#include <cmath>
+#include <iostream>
+
+// Triangle
+double area(double a, double b, double c) {
+  double s = (a + b + c) / 2;
+  return std::sqrt(s * (s - a) * (s - b) * (s - c));
+}
+
+// Rectangle
+double area(double a, double b) { return a * b; }
+
+// Circle
+double area(double a) { return M_PI * a * a; }
+
+int main() {
+
+  double a = 3, b = 4, c = 5;
+
+  std::cout << "Area of a triangle with sides " << a << ", " << b << " and "
+            << c << ": " << area(a, b, c) << std::endl
+            << "Area of rectangle with sides " << a << " and " << b << ": "
+            << area(a, b) << std::endl
+            << "Area of circle with radius " << a << ": " << area(a)
+            << std::endl;
+
+  return 0;
+}