diff --git a/.common/cpp/skeleton.cpp b/.common/cpp/skeleton.cpp
index e8c0d51..f8c1b80 100644
--- a/.common/cpp/skeleton.cpp
+++ b/.common/cpp/skeleton.cpp
@@ -150,6 +150,19 @@ Container collect(std::size_t size) {
   collect(c, size);
   return c;
 }
+
+template <typename T>
+std::map<T, std::size_t> collect_count(std::size_t size) {
+  std::map<T, std::size_t> counts;
+
+  for (auto i = 0u; i < size; ++i) {
+    T x;
+    std::cin >> x;
+    ++counts[x];
+  }
+
+  return counts;
+}
 #pragma endregion /* input */
 
 #pragma region math