Minimum Number of Steps to Make Two Strings Anagram
A medium-tier problem at 82% community acceptance, tagged with Hash Table, String, Counting. Reported in interviews at SoFi and 3 others.
Minimum Number of Steps to Make Two Strings Anagram is a medium-difficulty problem that SoFi, X, IXL, and DoorDash have all asked. The trick is deceptively simple: you need to count character frequencies in both strings and figure out how many characters differ. The 82% acceptance rate suggests most people who attempt it understand the core idea, but the assessment context matters. If you hit this during a live OA and freeze on the exact mechanics of comparing frequency maps, StealthCoder solves it invisibly while you stay calm.
Companies that ask "Minimum Number of Steps to Make Two Strings Anagram"
Minimum Number of Steps to Make Two Strings Anagram is the kind of problem that decides whether you pass. StealthCoder reads the problem on screen and surfaces a working solution in under 2 seconds. Invisible to screen share. The proctor sees nothing. Built by a senior engineer who knows the OA is theater. This is the script.
Get StealthCoderThe naive instinct is to sort both strings and compare them character by character. That works but wastes time and complexity. The real pattern is a frequency counter. Build a hash table for each string's character counts, then compare. Count only the characters that appear more times in one string than the other. Your answer is the sum of those differences. Common miss: forgetting that you only count the excess in the source string, not both. The algorithm is linear time, constant space (26 letters max). It's a hash table problem disguised as a string problem. When the assessment timer ticks and you're unsure if you're double-counting, StealthCoder delivers the clean solution in seconds without raising proctor suspicion.
Pattern tags
You know the problem.
Make sure you actually pass it.
Minimum Number of Steps to Make Two Strings Anagram recycles across companies for a reason. It's medium-tier, and most candidates blank under the timer. StealthCoder is the hedge: an AI overlay invisible during screen share. It reads the problem and surfaces a working solution in under 2 seconds. Built by a senior engineer who knows the OA is theater. This is the script. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Minimum Number of Steps to Make Two Strings Anagram interview FAQ
Is this really just a counting problem?+
Yes. Build frequency maps for both strings using a hash table, then sum the absolute differences for each character. No sorting, no fancy tricks. The 'steps' in the problem title means how many character swaps or deletions you need. Most solutions count the difference once and that's the answer.
What's the actual trick that makes people get stuck?+
Overthinking it. Some candidates try to sort and compare lexicographically. Others get tangled deciding whether to count differences on both sides or just one. The correct insight: iterate through one string's frequency map and sum how much each character count differs from the other string. That sum is your answer.
Do I need to handle edge cases around string length or Unicode?+
Not for this problem. Input constraints typically assume ASCII or lowercase letters. Edge cases like empty strings are trivial once you have the counting logic right. The 82% acceptance rate reflects that most people nail the base case quickly.
Why do SoFi, X, IXL, and DoorDash care about this one?+
It tests whether you recognize a string problem is really a frequency problem, which matters in real payment systems, ad platforms, and delivery logistics. It's a filter for candidates who think algorithmically under time pressure, not a trick question.
How long should this take in a real assessment?+
Once you see the pattern, 10 to 15 minutes. Write the frequency map, iterate and sum, test on an example. Most time goes to typing and debug. If you blank on how to compare the maps, that's where a live solution from StealthCoder prevents a failed OA.
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