How to do this with satcks?

#1

I have done this with arrays but what’s the other approach?

#2

Hello @zabhishek first take a input array
and a stack< int > s;
push the first index of array into the stack like s.push(a[0]);
apply loop from i=1 to n
now apply a while loop
while(!s.empty()&&s.top()<a[ i ])
{
cout<<a[ i ]<<" “;
now pop the current element from the stack reason for that we want to check for next element
s.pop();
}
push the next element of the array according to loop
s.push( a[ i ] );
while(! s.empty() )
{
cout<<-1<<” ";
s.pop();
}

#3

i tried this approach but it is not working for the case of circular array.

#4

@zabhishek in this do with indexing through which you can access the index and the element as well.
check this code:
https://ide.codingblocks.com/s/430946

#5

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