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Flipkart Interview Experience | Set 30 (For SDE 2)

  • Difficulty Level : Expert
  • Last Updated : 06 May, 2021

Machine Coding Round: (1 hour) 
—————————————– 
Implement a finite state machine. 
– The machine should have one start state and can have multiple end states 
– It should be extensible (I should be able to add any number of states or transitions at any time) 
– I should be able to set notifications on or off for any state or for the whole state machine 

Design: (1 hour) 
————————- 
Implement Bidding system in Flipkart’s website 

Algos: (1.5 hours) 
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1) There is one meeting room in Flipkart. There are n meetings in the form of (s(i),f(i)) where s(i) is start time of meeting i and f(i) is finish time of meeting i 

What is the maximum number of meetings that can be accommodated in the meeting room ? 

2) Given a number line from -infinity to +infinity. You start at 0 and can go either to the left or to the right. The condition is that in i-th move, you take i steps. 
a) Find if you can reach a given number x 
b) Find the most optimal way to reach a given number x, if we can indeed reach it 



3) Given a string s1 and another string s2, what is the smallest substring in s1 that contains all the characters of s2 ? (most efficient solution) 

4) Given a string s1 from a dictionary and a string s2 from a dictionary, find the minimum number of steps to transform s1 to s2 under the following conditions: 
       – You can change the implementation of dictionary 
       – Every transformation should belong to the dictionary 
       – You are given a O(1) library function F(s1,s2) which returns True or False for the query ‘can s2 be obtained from s1 with a single transformation’ 

Hiring Manager Round: (1 hour) 
—————————————– 
Lots of questions on projects, implementation, design etc. 

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