Oracle IC3 screening round

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October 1, 202525 reads

Summary

I recently had a screening round for an IC3 position at Oracle, which involved a profile discussion followed by two Data Structures and Algorithms questions.

Full Experience

My screening round for an IC3 role at Oracle began with a thirty-minute discussion about my professional profile. Following that, I was presented with two Data Structures and Algorithms problems. The first question was about merging overlapping intervals, and the second involved finding the longest non-repeating substring within a given string.

Interview Questions (2)

Q1
Merge Intervals
Data Structures & AlgorithmsMedium

Given an array of intervals intervals[i] = [starti, endi], merge all overlapping intervals, and return an array of the non-overlapping intervals that cover all the intervals in the input.

For example, given [[1,3],[2,6],[8,10],[15,18]], the output should be [[1,6],[8,10],[15,18]].

Q2
Longest Substring Without Repeating Characters
Data Structures & AlgorithmsMedium

Given a string s, find the length of the longest substring without repeating characters.

For example, if s = "abcabcbb", the answer is 3 (for "abc"). If s = "bbbbb", the answer is 1 (for "b").

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