Created the bitwise_decoder.cpp

bitwise_decoder.cpp

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+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+class ItemManager {
+private:
+    std::vector<int> availableItems;
+
+public:
+    ItemManager() {
+        availableItems = {1 << 0, 1 << 1, 1 << 2, 1 << 3, 1 << 4, 1 << 5, 1 << 6, 1 << 7, 1 << 8, 1 << 9};
+    }
+
+    bool isActivated(int index, int activatedItems) {
+        return index >= 0 && index < availableItems.size() &&
+               (activatedItems & availableItems[index]) == availableItems[index];
+    }
+
+    std::vector<int> getInventory(int activatedItems) {
+        std::vector<int> activated;
+        for (size_t i = 0; i < availableItems.size(); ++i)
+            if (isActivated(i, activatedItems)) activated.push_back(i + 1);
+
+        return activated;
+    }
+};
+
+int main() {
+    ItemManager itemManager;
+    int inventory;
+
+    cout << "Gib dein Inventar-Bitset ein: ";
+    cin >> inventory;
+
+    std::vector<int> items = itemManager.getInventory(inventory);
+
+    cout << "========== INVENTAR ==========" << endl;
+    for (int item: items) cout << "Item #" << item << " " << endl;
+    cout << "==============================" << endl;
+
+    return 0;
+}