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DSA · Theory

Check if the Given String of Words can be Formed from Words Present in the Dictionary

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Theory

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Check if the Given String of Words can be Formed from Words Present in the Dictionary

Check if the Given String of Words can be Formed from Words Present in the Dictionary is a DSA topic. In plain words you use it for name → phone in a diary. Don’t start with a slogan — start with that picture.

Smallest example: key % size + collision plan. Type it, run it, and say what you see. If you can do that from memory, you know Check if the Given String of Words can be Formed from Words Present in the Dictionary.

From the example next to this theory: Check if the Given String of Words can be Formed from Words Present in the Dictionary: dry-run [4, 1, 3].

Trap — bad hash → pile-up. Fix that before you talk about advanced DSA.

Viva: what is Check if the Given String of Words can be Formed from Words Present in the Dictionary? Then show key % size + collision plan. Then name the trap.

Exam tip

What is Check if the Given String of Words can be Formed from Words Present in the Dictionary? Show this: key % size + collision plan. Trap: bad hash → pile-up.

Example

# Check if the Given String of Words can be Formed from Words Present in the Dictionary
data = [4, 1, 3]
print("start", data)
if data[0] > data[1]:
    data[0], data[1] = data[1], data[0]
print("after one step", data)

Check if the Given String of Words can be Formed from Words Present in the Dictionary: dry-run [4, 1, 3]. Say the list after one step.

Short notes

  • DefCheck if the Given String of Words can be Formed from Words Present in the Dictionary — name → phone in a diary.
  • Rulekey % size + collision plan
  • Trapbad hash → pile-up
  • Usea diary

Questions

1

What is Check if the Given String of Words can be Formed from Words Present in the Dictionary?

2

Give one small example of Check if the Given String of Words can be Formed from Words Present in the Dictionary.

3

What mistake do beginners make with Check if the Given String of Words can be Formed from Words Present in the Dictionary?

4

Where do you use Check if the Given String of Words can be Formed from Words Present in the Dictionary?

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