scrabble_score: iteration 1

cpp/scrabble-score/scrabble_score.cpp

@@ -0,0 +1,34 @@
+#include "scrabble_score.h"
+
+#include <algorithm>
+#include <unordered_map>
+
+
+namespace scrabble_score {
+
+using namespace std;
+
+namespace {
+
+const unordered_map<char, int> scores_map = {
+         {'A', 1}, {'E', 1}, {'I', 1}, {'O', 1}, {'U', 1},
+         {'L', 1}, {'N', 1}, {'R', 1}, {'S', 1}, {'T', 1},
+         {'D', 2}, {'G', 2},
+         {'B', 3}, {'C', 3}, {'M', 3}, {'P', 3},
+         {'F', 4}, {'H', 4}, {'V', 4}, {'W', 4}, {'Y', 4},
+         {'K', 5},
+         {'J', 8}, {'X', 8},
+        {'Q', 10}, {'Z', 10}
+    };
+}
+
+int score(const string &input)
+{
+    return accumulate(input.cbegin(), input.cend(), 0,
+            [](int acc, char ch) {
+
+                return acc + scores_map.at(toupper(ch));
+            });
+};
+
+}

cpp/scrabble-score/scrabble_score.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#define EXERCISM_RUN_ALL_TESTS
+
+#include <string>
+
+namespace scrabble_score {
+
+int score(const std::string &input);
+
+}
+