Infosys DSE Interview Experience (OnCampus via HackWithInfy)

Round 1: Virtual Online Assessment involving 3 Ques(Easy, Med, Hard) i don't remember the questions exactly


Round 2: OnSite Coding Assessment having 4 Ques (Easy, Med, Hard, Complex)

  • Easy: Given an Array First Add all odd index and even index then give sum_odd - sum_even elements then swap odd and even sum and do sum_even - sum_odd and return minimum out of these

  • Medium & Hard i don't remember but they were of Greedy and DP as well

  • Complex: Given 2 grids say Grid1 and Grid2 then calculate minimum path sum from (0,0) cell to (n,m) cell i.e Bottom Right cell and we can switch grids with a cost of S

Personal Tip: You could easily Solve all 4 questions but passing all Hidden Test Cases is Tough so Focus on Writing Optimal Code so you don't get stuck


Round 3: Onsite Interview at Noida (Galgotias University)

  • I was Asked:
    • <>, := (Walrus Operator), MOD, abs, != operators
    • Pen Paper Code: Fibonacci Series, Bubble Sort and https://leetcode.com/problems/best-time-to-buy-and-sell-stock/
    • Make Sure to Back your Every Keyword Listed under RESUME Very Important
    • DBMS Questions: Delete V/s Truncate(atleast 3 differences)
    • Machine Learning(Because i mentioned it on my resume): ML Types, Libraries Used
    • Other Candidates were also asked about: Cloud Computing, OOPS concept + implement any 2 constructors, Garbage Collection, Java multiply integer and decimal number, given string print alpha-numeric

For Interview Resume is of Utmost Importance

All the best!

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