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diff --git a/CM2005 Object Oriented Programming/Topic 1/1.6.7/challenge.cpp b/CM2005 Object Oriented Programming/Topic 1/1.6.7/challenge.cpp
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+++ b/CM2005 Object Oriented Programming/Topic 1/1.6.7/challenge.cpp	
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+#include <iostream>
+#include <map>
+
+void printMenu()
+{
+  std::cout << "1: Print help" << std::endl;
+  std::cout << "2. Print exchange stats"  << std::endl;
+  std::cout << "3: Place an ask" << std::endl;
+  std::cout << "4: Place a bid" << std::endl;
+  std::cout << "5: Print wallet" << std::endl;
+  std::cout << "6: Continue" << std::endl;
+  std::cout << "Type in 1-6" << std::endl;
+}
+
+void printHelp()
+{
+  std::cout << "Help - your aim is to make money. Analyse the market and make bids and offers. " << std::endl;
+}
+
+void printMarketStats()
+{
+  std::cout << "Market Stats" << std::endl;
+}
+
+void enterAsk()
+{
+  std::cout << "Enter Ask" << std::endl;
+}
+void enterBid()
+{
+  std::cout << "Enter Bid" << std::endl;
+}
+
+void printWallet()
+{
+  std::cout << "Wallet" << std::endl;
+}
+
+void gotoNextTimeframe()
+{
+  std::cout << "Next Time Frame" << std::endl;
+}
+
+int getUserInput()
+{
+  int userInput;
+  std::cout << "Enter an option: ";
+  std::cin >> userInput;
+  return userInput;
+}
+
+int main ()
+{
+  // map from ints to function pointers
+  std::map<int,void(*)()> menu;
+  // connect 1 to the printHelp function
+  menu[1] = printHelp;
+  menu[2] = printMarketStats;
+  menu[3] = enterAsk;
+  menu[4] = enterBid;
+  menu[5] = printWallet;
+  menu[6] = gotoNextTimeframe;
+
+  while(1)
+  {
+    printMenu();
+    int userInput = getUserInput();
+    menu[userInput]();
+  }
+  //menu[0]();
+  return 0;
+}
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