Easy Strings Question 11 of 224

How do you check if two strings are anagrams?

DSA interview set · Speak this in 60–90 seconds · Faridabad & Delhi NCR

PICTURE THIS: HOW TO EXPLAIN IT

IdeaStrings
HowWhat happens inside
Why they askShows real use

Simple meaning

If lengths differ they cannot be anagrams.

1

WHY — Strings instead of guessing?

Why interviewers care about Strings:

This is a process

question about Strings.

Panels listen for order,

trade-offs, and what you would actually do on a DSA project - not buzzwords.

Stay structured

Name the idea, why it exists, then one short example.

Close cleanly

End with when you use it and one common pitfall.

2

STEPS — What happens step by step?

Before you speak the answer, walk the interviewer through these steps:

  1. 1
    If lengths differ they

    cannot be anagrams.

  2. 2
    Count character frequencies of

    the first string and decrement with the second

  3. 3
    all counts must land

    at zero.

  4. 4
    With a fixed alphabet

    this is O(n) time and O(1) space

  5. 5
    sorting both is O(n

    log n) and is the simple backup.

  6. 6
    Close

    When you pick this over the alternative.

3

EXAMPLE — See it in action

Here's a short line you can speak, broken into clear beats:

Say this line
“Count character frequencies of the first string and decrement with the second”
Break into beats
Countcharacterfrequenciesofthefirst
Speaking order
2987408337471632900

Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.

Key takeaway

If lengths differ they cannot be anagrams. Count character frequencies of the first string and decrement with the second

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