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Listening Quiz: Thảo luận về sự kém hiệu quả của thuật toán – Medium Level
Th12 30, 2025
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Kỹ sư phần mềm (English for Software Engineer)
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1.
What is the main topic of the conversation?
Why an algorithm is slow and how to improve it
How to write a new algorithm from scratch
How to remove all loops from a program
Why hash tables are difficult to use
Explanation:
The speakers discuss that the algorithm runs slowly because of many loops, and they talk about using better data structures like hash tables to make it faster.
2.
According to Mia, what causes the delay in the algorithm?
The algorithm uses too much memory
The data structures are too simple
Michael does not understand the code
Each loop repeats many times
Explanation:
Mia explains that each loop repeats many times, which increases time and causes delay.
3.
What data structure does Mia suggest using?
Stacks
Arrays
Queues
Hash tables
Explanation:
Mia says, ‘Hash tables can find data quickly.’
4.
What can be inferred about the effect of nested loops?
They only affect memory use
They multiply the delay
They make the program finish faster
They remove the need for data structures
Explanation:
Mia directly says that nested loops multiply the delay, so it can be inferred they make the algorithm slower.
5.
Why does Michael say, ‘That sounds useful’?
He thinks hash tables will create more loops
He is unsure whether the algorithm is slow
He wants to end the conversation quickly
He agrees that the idea may help fix the problem
Explanation:
Michael says this after Mia explains that hash tables can reduce the need for loops, showing he agrees the suggestion may help solve the problem.
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