DeltaX Interview Questions — 3 DSA Problems

3 problems with full solutions in Python, Java, C++, JavaScript, Go, Rust.

Most frequently asked DeltaX LeetCode questions for software engineering interviews.

Roman to Integer (EASY) — Hash Table, Math, String
Longest Consecutive Sequence (MEDIUM) — Array, Hash Table, Union Find
Different Ways to Add Parentheses (MEDIUM) — Math, String, Dynamic Programming, Recursion, Memoization

DeltaX

3 questions tracked3 with solutions

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Frequency scoreSorted highest → lowest frequency✓ Our Solution = we have a detailed walkthrough

Showing 3 of 3 questions

EasyRoman to Integer✓ Our Solution

100

Hash TableMathString

MediumLongest Consecutive Sequence✓ Our Solution

ArrayHash TableUnion Find

MediumDifferent Ways to Add Parentheses✓ Our Solution

MathStringDynamic ProgrammingRecursion+1