Ecom Express Interview Questions, Process, and Tips

Q1. DSA ROUND - DP problem
Ans. 
Dynamic Programming problem involving finding the maximum sum of non-adjacent elements in an array.
• Use dynamic programming to keep track of the maximum sum at each index.

• At each index, the maximum sum is either the current element plus the sum two indices back, or the sum at the previous index.

• Example: For array [2, 4, 6, 2, 5], the maximum sum of non-adjacent elements is 13 (2 + 6 + 5).
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Q2. DSA ROUND - STRING PROBLEM
Ans. 
Find the longest common prefix among an array of strings.
• Iterate through the characters of the first string and compare with other strings

• Return the prefix when characters don't match or reach end of any string

• Example: Input - ['flower', 'flow', 'flight'], Output - 'fl'
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Q1. PROJECT RELATED QUESTIONS
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Q2. DESIGN LRU CACHE
Ans. 
LRU cache is a data structure that stores the most recently used items.
• Use a doubly linked list to keep track of the order of items based on their usage.

• Use a hashmap to quickly access items in the cache.

• When a new item is accessed, move it to the front of the linked list.

• If the cache is full, remove the least recently used item from the end of the linked list.
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Q1. What about your self
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Q2. Talk to work experience in privious company
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Aptitude test went good like the CAT

Q1. Supply chain solution question
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Q2. Storage solution optimisation
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Q1. Electrical construction
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Q2. Racking, projects managment
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Supply chain data based case study

Q1. Design parameters
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Q2. Construction related
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Q1. Random question
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Q2. Management
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