Good link for job interview preperations https://github.com/yash0530/InterviewPrepResources
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What's a priority queue?
'Ladies first' is an instance of 'min priority queue', where as a queue free from any such bias is a normal queue.
Difference between creating a heap and heapify
Creating a Heap is inserting all the elements of a given array into an existing heap assuming the first element of the given array as the initial heap, where as Heapify is simply creating a CBT ( complete binary tree) with all the elements of the given array and then converting that CBT into a heap, by moving up from the last non-leaf node up to the root.
Why time complexity of Heapify is O(n)?
Look at this first then you may Have a look here also.
Harmonic progression this is needed to understand the above.
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Is the number of all INTO functions from the set {1, 2, 3, ..... n} to itself equal to all number of MANY to ONE fuctions?
Yes, t he number of all into functions from the set {1, 2, 3, .... n} to itself is exactly equal to the number of many-to-one functions ...
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Here are some links to online work sites https://www.upwork.com/ https://www.guru.com/ https://studio.envato.com/freelance-switch/ htt...