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Summary
I applied through LinkedIn and was called for an SDE-2 interview at Mckinsey. The first round consisted of two DSA problems, one of which I partially solved and the other I was unable to solve, leading to rejection.
Full Experience
Got a call from HR after applying through LinkedIn in couple of days.
I was informed that there will be 4 round of interview.
On first round, I was given 2 DSA problems.
- Find whether the BST is valid or not but tricky part here is that input won't be a BST. It will be preorder sequence of a BST as list. - Partially solved
- Find the minimum amount spent to purchase products. we will get array of prices of products and no of coupons as second argument which a integer. Formula to apply coupon is price//2 ** coupon - we have to use maxheap here but I forgot the implementation. unbale to solve.
Verdict - Rejected
Interview Questions (2)
Find whether the BST is valid or not but tricky part here is that input won't be a BST. It will be preorder sequence of a BST as list.
Find the minimum amount spent to purchase products. we will get array of prices of products and no of coupons as second argument which a integer. Formula to apply coupon is price//2 ** coupon - we have to use maxheap here but I forgot the implementation. unbale to solve.