Question

Boolean mystery()

{
turnRight();
if( frontIsClear() )
{
turnLeft();
return true;
}
turnLeft();
return false;
}

What is mystery() checking for?

A) If Left is clear
B) If Front is clear
C) If right is clear
D) If reverse is clear

Answer 1

The function 'mystery()' is checking whether the path is clear directly in front of the entity after it turns right. It returns true if that space is clear, and false otherwise, with the entity ending up facing its original direction regardless of the result.

Step-by-step explanation:

The function mystery() is intended to check whether the path directly in front of the entity (which could be a robot or character in a programming context) is clear, after the entity performs a turn to the right. Initially, the entity turns right with the turnRight() command.

It then checks if the space in front is clear by using the condition if( frontIsClear() ). If the condition returns true, it implies that after turning right, the space in front (which was originally to the left of the initial position of the entity) is clear.

The entity then turns left with turnLeft() to face its original direction before the function returns true. If the condition returns false, indicating the path is not clear, it will simply turn left to face its original direction and then return false.