TLAC Summary: 6. The Chasm

What is the only thing between Ethic, Hedge, and Octavia and the tower that houses the second powerful artifact?

• A river

• A mountain

• A bottomless ravine

• A bridge

What are the bridge components called?

• Hover-bricks

• Floating stones

• Hover-blocks

• Self-assemble blocks

What is the catch with the hover-blocks in terms of stability?

• They are only stable when they are in a circular pattern

• They are only stable when they are in a zigzag pattern

• They are only stable when they are in a straight line

• They are only stable when they form a sequence that's the same when viewed forwards and backwards

What does the Node of Power enable Hedge to do?

• Energize a single stack of blocks

• Fly across the ravine

• Power the tower

• Create a bridge

What is the problem with the naïve solution of trying all the arrangements to find a palindrome?

• It takes a tremendous amount of time

• It is not effective

• It is too complicated

• It is too easy

What is the most generalized insight about the occurrence of letters in a palindrome?

• All letters must occur an even number of times

• At most one letter can appear an odd number of times, but the rest have to be even

• At most two letters can appear an odd number of times, but the rest have to be even

• All letters must occur an odd number of times

What is the time complexity of the linear time approach to determine if a stack can form a palindrome?

• Proportional to the number of blocks

• Quadratic time

• Factorial time

• Exponential time

What does Hedge do to approach the piles individually and stop when he finds a good one?

• Count the letters in each stack

• Organize the letters into a dictionary

• Energize the pile with the Node of Power

• Write a loop to count how many times odd numbers appear

What is the outcome for Ethic and Hedge at the end of the story?

• Hedge is safe but Ethic is not

• Ethic is safe but Hedge is not

• Both fall into the ravine

• Both are safe

Who is not so lucky at the end of the story?

• Ethic

• Hedge

• Octavia

• The guards