Number of islands in a 2d array
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Was asked a systems design question leetcode medium
what is difference between c++ and java? where is polymorphism used , explain with example
Given a number, give the previous lexographicall number. Number can be -ve, +ve , can be in decimal as well
They asked about designing the architecture for booking a reservation using Alexa, no code but only design.
Prepare Leet code amazon questions everything was from that
given a array of 0 and 1 find the window size of largest subarray with all one . You can atmost change one 0 to 1.
Two sum. Typical leetcode easy questions.
Q2. Design a delivery system for Amazon such that the country is linked to different states, each state is linked to cities, each city linked to areas etc.
Git, data structures, Java, oop
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