etl: iteration 1

cpp/etl/etl.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#define EXERCISM_RUN_ALL_TESTS
+
+#include <map>
+#include <vector>
+
+namespace etl {
+
+typedef std::map<int, std::vector<char>> old_score_t;
+typedef std::map<char, int>              new_score_t;
+
+new_score_t transform(const old_score_t&);
+
+}