Cleantech Solar Data Analyst Intern Interview Questions, Process, and Tips

Round duration - 60 Minutes
Round difficulty - Medium

It was a mix round. Starting with problem-solving, then data structures, then DBMS, and finally data science
2 Interviewers
Early morning

Q1. Water Jug Problem
You are given two water jugs with capacities X and Y litres respectively. Both the jugs are initially empty. There is an infinite amount of water supply available. The jugs do not have ma...read more
Ans. Using BFS
We will run a breadth-first search(BFS), keeping states as water present in both the jugs. We will visit all the states, keeping a hashmap for visited states to not revisit the same state. If we reach a state such that the capacity of water in one of the jugs is equal to ‘Z’ liters or the sum of water in both the jugs is equal to ‘Z’ liters we return true else we return false. 
 
Below is the detailed ...read more
Answered Anonymously
Add your answer
Q2. Aptitude Question
Balls picking probability problem
Add your answer
Q3. Insertion Sort in Linked List
You are given an arbitrary linked list consisting of 'N' nodes having integer values. You need to perform insertion sort on the linked list and print the final list in...read more
Ans. Try to use pointers for manipulating the given list.
For solving this problem, we will use the fundamental concept of Insertion Sort i.e, to divide the input array into an unsorted and sorted partition. After that, keep placing elements from the unsorted partition into its correct position in the sorted partition.  We will make use of pointers to keep track of various positions in both the lists and modify these po...read more
Answered Anonymously
Add your answer
Q4. DBMS Question
Keys and their properties
Add your answer
Q5. Data Science Quesions
Some data science topic question like the difference between loc and iloc, what are dashboards etc
Add your answer

Round duration - 15 Minutes
Round difficulty - Easy

Early morning
Relaxed environment
Very kind and gentle