CareerCup Implement a stack that pops out the most frequently added item
2014-03-12 09:55
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Implement a stack that pops out the most frequently added item. Stack supports 3 functions - push, pop,and top.
Give complexity of each functions in your implementation.
--------------------------------------------------------------
One
option is to combine heap (to get top) with hashtable (to find element in heap). That way insert is o(logn) and retrieval is o(1).
Give complexity of each functions in your implementation.
--------------------------------------------------------------
One
option is to combine heap (to get top) with hashtable (to find element in heap). That way insert is o(logn) and retrieval is o(1).
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