Problem database last updated: June 20, 2025
4 problems · 3 Easy, 1 Medium, 0 Hard · Ranked #272 of 458
3 Easy
75% · avg 23%
1 Medium
25% · avg 59%
0 Hard
0% · avg 18%
Based on 4 reported problems, opentext interviews are easier than average - only 0% Hard compared to 18% across all companies.
Compared to the industry average, opentext puts unusual emphasis on string (75% of problems, 2.7x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are string (75%), hash-table (25%), sliding-window (25%), array (25%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Largest 3-Same-Digit Number in String You are given a string num representing a large integer. An integer is good if it meets the following conditions: | Easy | Very Likely | string | Solve |
Longest Substring Without Repeating Characters Given a string s, find the length of the longest substring without duplicate characters. | Medium | Likely | hash-tablestringsliding-window | Solve |
Best Time to Buy and Sell Stock You are given an array prices where prices[i] is the price of a given stock on the ith day. | Easy | Likely | arraydynamic-programming | Solve |
Valid Parentheses Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. | Easy | Likely | stringstack | Solve |
Largest 3-Same-Digit Number in String
SolveYou are given a string num representing a large integer. An integer is good if it meets the following conditions:
Longest Substring Without Repeating Characters
SolveGiven a string s, find the length of the longest substring without duplicate characters.
Best Time to Buy and Sell Stock
SolveYou are given an array prices where prices[i] is the price of a given stock on the ith day.
Valid Parentheses
SolveGiven a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent opentext interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
opentext interviews focus heavily on string, hash-table, sliding-window problems. If you're short on time, these are the categories to prioritize. The problems on this page are sorted by frequency, so start from the top and work your way down.
Beyond solving problems, practice explaining your approach. opentext interviewers care about your thought process - how you break down a problem, consider edge cases, and evaluate tradeoffs between solutions. A clean O(n) solution you can explain clearly beats an O(log n) solution you can't articulate.
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opentext has been reported to ask 4 distinct coding problems. The most common topics are string, hash-table, sliding-window. 3 are Easy difficulty, 1 are Medium, and 0 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 4 reported problems, opentext interviews are easier than average - only 0% Hard compared to 18% across all companies. 25% of questions are Medium difficulty. Focus on the high-frequency Medium problems first, then work through the Hard ones.
Start with the highest-frequency problems listed on this page. Focus on the core topics: string, hash-table, sliding-window. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
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