function fillRow() putBeeper(); // Start with a beeper while(frontIsClear()) move(); if(frontIsClear()) move(); putBeeper(); Use code with caution. Copied to clipboard
turnAround(); moveToNextRow();
To complete the challenge on CodeHS, you must program Karel to fill an empty rectangular world with a beeper pattern resembling a checkerboard. The Strategy 645 checkerboard karel answer verified
The challenge requires Karel to place beepers in a checkerboard pattern across any sized rectangular world. The most robust solution involves a "row-by-row" approach where Karel alternates beeper placement based on the position of the last beeper in the previous row. Problem Overview function fillRow() putBeeper(); // Start with a beeper