Add student example inputs

examples/nim/nim.mc

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+/*
+  The computers realy stupid strategy
+  It is only able to win if the human lets the computer make the first move
+*/
+int computer_strategy(int pile, int human_last_choice)
+{
+    int choice;
+
+    if(human_last_choice == 0)
+    {
+        {
+            { return 2; }
+        }
+    }
+
+    choice = 2 * 2 - human_last_choice;
+
+    if( (pile - choice ) < 0 )
+    {
+        return 1;
+    }
+
+    return choice;
+}
+
+void print_pile_size(int pile)
+{
+    print("Size of the match stick pile: ");
+    print_int(pile);
+    print_nl();
+}
+
+void print_removal(string player, int choice)
+{
+    print(player);
+    print(" removed: ");
+    print_int(choice);
+    print_nl();
+}
+
+void game(int pile, int start)
+{
+    int human_choice;
+    int computer_choice;
+    int next;
+
+    string opponent;
+
+    string computer_chose;
+    computer_chose = "Computer removed: ";
+
+    string human_chose;
+    human_chose = "You decided to remove: ";
+
+    if( start == 1 )
+    {
+        opponent = "Human";
+
+        computer_choice = computer_strategy(pile, 0);
+        pile = pile - computer_choice;
+
+        print_removal("Computer", computer_choice);
+    }
+
+    while( pile > 0 )
+    {
+        opponent = "Computer";
+
+        print_pile_size(pile);
+
+        print("How many match sticks do you want to take away? Between 1 and 3.");
+        print_nl();
+
+        human_choice = read_int();
+        next = pile - human_choice;
+
+        if( (human_choice <= 3) && ( next >=0 ) )
+        {
+            pile = next;
+
+            print_removal("You", human_choice);
+            print_pile_size(pile);
+
+        }
+        else
+        {
+            print("Invalid move. You must take between 1 and 3 match sticks. But you tried to take ");
+            print_int(human_choice);
+            print(" match sticks");
+            print_nl();
+        }
+
+        if( human_choice <= 3 && pile>0)
+        {
+
+            opponent = "Human";
+
+            computer_choice = computer_strategy(pile, human_choice);
+            pile = pile - computer_choice;
+
+            print(computer_chose);
+            print_int(computer_choice);
+            print_nl();
+        }
+    }
+
+    print(opponent);
+    print(" wins.");
+    print_nl();
+}
+
+int main()
+{
+    int pile;
+    int start;
+
+    pile = 15;
+
+    print("NIM: The match stick game");
+    print_nl();
+    print(".........................");
+    print_nl();
+
+    print("Size of the match stick pile: ");
+    print_int(pile);
+    print_nl();
+
+    print("Who should start the game? 0 for You 1 for Computer");
+    print_nl();
+    start = read_int();
+
+    if( start < 0 || start > 1 )
+    {
+        print("FAILURE: Start was ");
+        print_int(start);
+        print("but should have been between 0 and 1");
+        print_nl();
+        return 1;
+    }
+
+    game(pile, start);
+
+    return 0;
+}

examples/nim/nim.stdin.txt

@@ -0,0 +1,6 @@
+0
+14
+2
+2
+2
+2

examples/nim/nim.stdout.txt

@@ -0,0 +1,28 @@
+NIM: The match stick game
+.........................
+Size of the match stick pile: 15
+Who should start the game? 0 for You 1 for Computer
+Size of the match stick pile: 15
+How many match sticks do you want to take away? Between 1 and 3.
+Invalid move. You must take between 1 and 3 match sticks. But you tried to take 14 match sticks
+Size of the match stick pile: 15
+How many match sticks do you want to take away? Between 1 and 3.
+You removed: 2
+Size of the match stick pile: 13
+Computer removed: 2
+Size of the match stick pile: 11
+How many match sticks do you want to take away? Between 1 and 3.
+You removed: 2
+Size of the match stick pile: 9
+Computer removed: 2
+Size of the match stick pile: 7
+How many match sticks do you want to take away? Between 1 and 3.
+You removed: 2
+Size of the match stick pile: 5
+Computer removed: 2
+Size of the match stick pile: 3
+How many match sticks do you want to take away? Between 1 and 3.
+You removed: 2
+Size of the match stick pile: 1
+Computer removed: 1
+Human wins.