init commit

contests/6contest/2.cpp

@@ -0,0 +1,16 @@
+// #include <iostream>
+// #include <vector>
+#include <iterator>
+
+template <typename Container, typename Predicate>
+Container myfilter(const Container& container, Predicate pred) {
+    Container result;
+
+    for (const auto& x : container) {
+        if (pred(x)) {
+            result.insert(result.end(), x);
+        }
+    }
+
+    return result;
+}