What is the issue with my code?

https://ide.codingblocks.com/s/203296 I am getting correct answers on manual input

@tusharnitharwal i am sharing the correct code with you. You have to process the given array first and then work on the stack. https://ide.codingblocks.com/s/203321

but what is the problem with my code? It was giving correct answers too

@tusharnitharwal but it is not covering all the corner cases

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