algorithm of isempty(function begin procedure isempty if top less than return true else return false endif end procedure implementation of isempty(function in programming language is slightly different we initialize top at - as the index in array starts from so we check if the top is below zero or - to determine if the stack is empty here' the code example bool isempty(if(top =- return trueelse return falsepush operation the process of putting new data element onto stack is known as push operation push operation involves series of steps step checks if the stack is full step if the stack is fullproduces an error and exit step if the stack is not fullincrements top to point next empty space step adds data element to the stack locationwhere top is pointing step returns success if the linked list is used to implement the stackthen in step we need to allocate space dynamically algorithm for push operation simple algorithm for push operation can be derived as follows begin procedure pushstackdata if stack is full