$1$(a) A stack named FruitStack, implemented using list, contains records of some fruits. Each record is represented as a dictionary with keys 'Name', 'Origin', 'Price', and 'Expiry'. A sample record is given here :

{'Name':'Apple','Origin':'France','Price':120,
'Expiry':'12-08-2025'}

Write the following user-defined functions in Python to perform the specified operations on FruitStack :

(i)push_fruit(FruitStack, Fruit) : This function takes the stack FruitStack and a new record Fruit as arguments and pushes the record stored in Fruit onto FruitStack if the Price is less than 100.(ii)pop_fruit(FruitStack): This function pops the topmost record from the stack and returns it. If the stack is already empty, the function should display "UNDERFLOW".(iii)display(FruitStack): This function displays all the elements of the stack starting from the topmost element. If the stack is empty, the function should display 'EMPTY STACK'.

OR

(b) Write a Python program to accept $\displaystyle 10$ integers from the user. If the entered number is a three-digit even integer, push it onto a stack. After all inputs are taken, pop all the three-digit even integers from the stack and display them. For example, if the user enters $\displaystyle 12$, $\displaystyle 31$, $\displaystyle 320$, $\displaystyle 457$, $\displaystyle 6$, $\displaystyle 92$, $\displaystyle 924$, $\displaystyle 220$, $\displaystyle 1$, $\displaystyle 218$, then the stack should contain : \[\text { 320, 924, 220, } 218 \] and the output of the program should be : \[218220924320 \]

Computer Science · Data Structure - Stack