@@ -1 +1,18 @@
-1
+#include <iostream>
+#include <iterator>
+#include <vector>
+#include <algorithm>
+ 
+int main() {
+    std::vector<int> v{ 1, 3, 10, 8, 22 };
+ 
+    std::sort(v.begin(), v.end());
+    std::copy(v.begin(), v.end(), std::ostream_iterator<int>(std::cout, ", "));
+ 
+    std::cout << '\n';
+ 
+    std::copy(
+        std::make_reverse_iterator(v.end()), 
+        std::make_reverse_iterator(v.begin()),
+        std::ostream_iterator<int>(std::cout, ", "));
+}