counter-game: initial commit

algorithms/bit-manipulation/counter-game/README.md

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+<https://www.hackerrank.com/challenges/counter-game>

algorithms/bit-manipulation/counter-game/game.cpp

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+#include <iostream>
+#include <stdint.h>
+
+int main()
+{  
+    using namespace std;
+
+    size_t T;
+    cin >> T;
+
+    while (T--) {
+
+        uint64_t N, count;
+        cin >> N;
+
+        --N;
+
+        for (count = 0; N; ++count) {
+
+            N &= N - 1;
+        }
+
+        cout << ((count & 1) ? "Louise" : "Richard") << endl;
+    }
+
+    return 0;
+}