If Karel starts at Row 1 and Column 1, facing East, where will Karel be, and what direction will Karel be facing after running the following code? (Assume the world is 10x10 in size)

Question

move();
turnLeft();
putBall();
turnLeft();
turnLeft();
turnLeft();
move();
turnLeft();
JavaScript

Row 3, Column 1, Facing North

Row 1, Column 4, Facing North

Row 1, Column 3, Facing South

Row 1, Column 3, Facing North

Answer 1

Let's analyze the code step by step to determine Karel's final position and direction:

1. Initial Position: Karel starts at Row 1, Column 1, facing East.

2. Code Execution:

   • move();
     • Karel moves from (1, 1) to (1, 2) (still facing East).
   • turnLeft();
     • Karel turns to face North.
   • putBall();
     • Karel puts a ball at (1, 2). Position: (1, 2), Facing North.
   • turnLeft();
     • Karel turns to face West.
   • turnLeft();
     • Karel turns to face South.
   • turnLeft();
     • Karel turns to face East again.
   • move();
     • Karel moves from (1, 2) to (1, 3) (still facing East).
   • turnLeft();
     • Karel turns to face North.

After executing all the commands, Karel ends up at:

Row 1, Column 3, Facing North.

The correct answer, based on the provided options, is:

Row 1, Column 3, Facing North.