MakeMyTrip Software Developer Interview Questions, Process, and Tips

Q1. Design a minimum stack that supports the following operations: push, pop, top, and retrieving the minimum element in constant time.
Ans. 
Design a stack that supports push, pop, top, and retrieving minimum element in constant time.
• Use two stacks - one to store the actual elements and another to store the minimum values encountered so far

• When pushing an element, check if it is smaller than the current minimum and if so, push it to the minimum stack

• When popping an element, check if it is the current minimum and if so, pop from the minimum stack as well

• Top ...read more
Answered by AI
Add your answer
Q2. Given an integer array of size n, find the maximum circular subarray sum. A circular array means that the end of the array connects back to the beginning. The solution should consider both the non-circular...read more
Ans. 
Find the maximum circular subarray sum in an integer array.
• Calculate the non-circular maximum subarray sum using Kadane's algorithm.

• Calculate the circular maximum subarray sum by subtracting the minimum subarray sum from the total sum.

• Compare the non-circular and circular maximum subarray sums to get the overall maximum sum.
Answered by AI
Add your answer

Q1. Dsa question was there medium level
Add your answer

1)graph question 2)dp question

Q1. Merge intervals provided array of start and end Maximum product subaaray
Add your answer

Q1. Smallest window in a string containing all the characters of another string.(GFG)
Ans. 
Find the smallest window in a string containing all characters of another string.
• Use a sliding window approach to find the smallest window

• Create a frequency map of characters in the second string

• Slide the window and update the frequency map until all characters are found

• Track the minimum window size and indices
Answered by AI
View 1 more answer
Q2. Check whether linked list is Pallindrome or not
Ans. 
To check if a linked list is a palindrome, compare the first half of the list with the reversed second half.
• Traverse the linked list to find the middle element using slow and fast pointers.

• Reverse the second half of the linked list.

• Compare the first half with the reversed second half to check for palindrome.
Answered by AI
Add your answer
Q3. Deadlocks,4 conditions of Deadlocks and ways of preventing Deadlock
Ans. 
Deadlocks occur when two or more processes are waiting for each other to release resources, leading to a standstill.
• 4 conditions of Deadlocks: mutual exclusion, hold and wait, no preemption, circular wait

• Preventing Deadlocks: using a proper resource allocation strategy, implementing timeouts, avoiding circular wait, using deadlock detection and recovery algorithms

• Example: Two processes each holding a resource and waiti...read more
Answered by AI
Add your answer

Q1. Algorithm to find if any 5 numbers add up to the value of the Sum
Ans. 
Use a hash set to store seen numbers and check if the complement of current number is in the set.
• Iterate through the array and for each number, check if the complement of the current number is in the hash set.

• If the complement is found, return true. Otherwise, add the current number to the hash set.

• Repeat this process for all numbers in the array.

• Example: Array [1, 2, 3, 4, 5] and Sum 9 should return true as 4 + 5 = 9.
Answered by AI
Add your answer
Q2. What is DNS(Domain Name System)
Ans. 
DNS is a system that translates domain names to IP addresses, allowing users to access websites using human-readable names.
• DNS is like a phone book for the internet, translating domain names (e.g. google.com) to IP addresses (e.g. 172.217.3.206).

• DNS servers store records that map domain names to IP addresses, helping users navigate the internet.

• DNS also helps with email delivery by translating domain names in email add
Answered by AI
Add your answer