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Is any operations in stack array implementation is linear time complexity?

If there what is operation and explain abt that?
asked in DS by Junior (689 points)  
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Basic Operations of stack -:push and Pop takes constant time $\Omega \left ( 1 \right )$,But searching an element will take $O\left ( n \right )$ as in the worst case you may have to pop 'n' element to get the key if the key is present at the bottom of stack.

Note -:Searching is not basic operation of stack.

answered by Boss (8.1k points)  
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