Design a stack that has an O(1) max() method.
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One of the question was on Designing & Code a TTL Cache with some modifications
Given an array of 1001 elements, consists all numbers from 1-1000. Only one number is repeated. Write a function that returns the repeated number.
Give a deck of card, calculate total number of point that is closes to 21. ex A,A,J = 12 , J,J,A,2 = 23 A, 2 = 13
Last 15 mins- coding question: Given 6 integers and 1 target value, write a function to get the target value using 6 integers with any on these operations +,*,-,/
will cache affect memory I/O register?
How many degrees are between the hour and minute hand on a clock at 9:45?
Given the root of a binary tree and an integer targetSum, return all root-to-leaf paths where each path's sum equals targetSum.
The first question is two find the largest and second largest value at each level of a binary tree. You don't need to return all values, just print out instead. the second question is to return a value in an array with the probability proportional to the weight of the value within the array. For example, in an array [4,5,6], return 4 with probability 4/15, 5 with 5/15 and 6 with 6/15. You are given a function that returns a random real number between 0 and 1
1. Given 1 billion numbers, find 100 largest numbers 2. Prefix notation +*123 = 5
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