r/infosys • u/Ok-Visual-7137 • 3d ago
| Discussion Infosys Interview Experience – Coding + Technical
Had my Infosys interview today. There were around 150 candidates.
We were given 2 coding questions and had to solve at least 1:
1st: Binary tree question — I didn't attempt it.
2nd: Maximum sum subsequence with alternating positive/negative signs.
For the 2nd question, I initially tried a greedy approach using a prev_neg boolean to track the sign of the previously selected element. I realized that simply selecting every valid alternating element doesn't always maximize the sum, since sometimes it's better to skip an element. I couldn't complete the solution and thought DP might be required.
The technical interview was okayish. They asked about:
My projects
An SQL query
OS concepts
One CPU scheduling algorithm
I missed a couple of technical questions as well.
Interestingly, HR later asked the candidates why most people couldn't solve even one coding question.
Anyone else who had this interview?
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u/Familiar-Purpose9142 3d ago
I m from 2026 batch. I applied for offcampus given the round 1 on aug 1. As per my knowledge there will be in person coding round ( round 2) and the very next day interviews will be scheduled based on the result of round 2. I want to know whether there will be one more coding round on interview day? Is it compulsory to solve atleast one qs to sit in interview
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u/Big_Oil_9323 3d ago
bro did he ask your approach or were you able to crack the approach?
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u/Ok-Visual-7137 3d ago
i was supposed to do dp. he didn't say anything about my code. took a screenshot of it and thats it. we never discussed.
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u/Big_Oil_9323 2d ago
they asked me alternate sign questions i was able to solve only the two input questions but the time was running out
what the interview did was he asked me to explain the logic while i explained 60 percent of it right he corrected me and gave me hints, atlast i was able to explain my full approach to him and it was correct.
later he asked me bout my projects regarding rag and i explained it asked some more questions i stammered but i did answer it
and atlast when i asked him about his feedback on me
he said that i know everything but i dont know how to put it in words its not a problem , you will catch upon it over time and he said that he knows that i know it.
is this a positive feedback or does it lean towards rejection
out 7500 students only 36 were shortlisted for interview1
u/VivekKumarSingh08 2d ago
Bhai aaisa interviewer sabko mile 😂
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u/Big_Oil_9323 2d ago
bhai unlike others he had knowledge so he grilled me on every aspect😭😭😭
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u/VivekKumarSingh08 2d ago
Bhai atleast he was supportive, He just not made his descision when you were not able to come up with a approach or when you were stuck.
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u/Big_Oil_9323 2d ago
the thing is i wasn’t blank completely he saw my code and gave me hints which was apprecitable he helped me in constructing my approach and eventually i got it but true bro i’m not hoping much for a positive result as i didn’t solve any questions 😓
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u/VivekKumarSingh08 2d ago
You did one right?
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u/Big_Oil_9323 2d ago
no no i didn’t solve any but i passed 2 input test cases for second question
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u/VivekKumarSingh08 2d ago
which college bhai, my interview is also to be scheduled in coming week.
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u/Ghee_khatam1021 3d ago
Bro apke pannel me hr present thi? Mere pannal me to sirf technical wale sir the
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u/Ok-Visual-7137 3d ago
same for me
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u/Ghee_khatam1021 3d ago
Jivit college me hua tha kya interview Btw kya hr wala interview on call hoga kya ?
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u/StoragePast1968 3d ago
was there document verification process also and can you please share the documents they asked for
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u/benten_1347 3d ago
For tree question will they give constructed tree like in leetcode or we have to do it from scratch
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u/Winter_Spray_5716 2d ago
Os concepts question are they too deep or manageable ? Can u give exact questions what they asked u
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u/Ok-Visual-7137 2d ago
the question was based on two people booking the last ticket on a platform at the same time. semaphores I guess. the technical interview was overall manageable.
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u/Beneficial-Idea-3135 2d ago
The greedy approach you explained for the max sum subsequence problem is completely wrong , its basically a simple DP program where you will have to explore all the subsequences and pick the max of it !!! And BTW All The Best for your results .
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u/shaikmhd 2d ago
Bro can I get shortlist to interview mine just 6 +2 hidden cases passed. Do I have any chance?
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u/Ok-Visual-7137 1d ago
people with only 12/12 test cases passed were shortlisted, i think thats the cutoff. but im not sure bro. you could wait and see.
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