public class CheckerboardKarel extends SuperKarel
row with a color or a blank space. This solution handles that 'memory' perfectly through smart positioning and conditional checks.
This one was a headache. Getting the alternating pattern to work on single-row worlds versus wide grids required a lot of debugging, but the solution is finally verified and working across all test cases.
: Karel places a beeper, moves forward twice, and repeats until hitting a wall. This ensures beepers are always one space apart.
Remember that for a row of length 5, there are 4 moves but 5 potential beeper spots. Your code must account for that final spot. Conclusion