「🗑️」 clean: cleanup things and slightly improved ex02/main.cpp

ex02/PmergeMe.cpp

@@ -0,0 +1,23 @@
+#include "PmergeMe.hpp"
+
+std::vector<size_t> generateJacobsthal(size_t n)
+{
+    std::vector<size_t> seq;
+    if (n == 0)
+		return seq;
+    seq.push_back(0);
+    if (n == 1)
+		return seq;
+    seq.push_back(1);
+    size_t j0 = 0, j1 = 1;
+    while (true)
+	{
+        size_t jn = j1 + 2 * j0;
+        if (jn >= n)
+			break;
+        seq.push_back(jn);
+        j0 = j1;
+        j1 = jn;
+    }
+    return seq;
+}