Ip Sumita Arora Class 12 » (VALIDATED)

Half the class panicked. Rohan smiled.

The practical exam began. The question: "Create a function that takes a list of numbers and returns a new list with only prime numbers, using a stack-like approach."

The examiner nodded. "Good. Clear." Rohan scored 95/100 in Computer Science. Later, a junior asked him, "Which book is best for Class 12 CS?" ip sumita arora class 12

When the examiner asked, "Explain variable scope in your function," Rohan drew two boxes on the rough sheet—exactly like Meera had shown him, exactly like of the book.

Write a program to check if a string is a palindrome. Half the class panicked

"Sumita Arora explains it with a chit system on page 187," she said. "A local variable is like a chit passed inside the small box. You can't use it outside. A global variable is like a chit on the main notice board. Everyone sees it."

He turned to . Sumita Ma'am's table compared Stack vs Queue with real-life examples: "Plates in a cafeteria" for LIFO. He coded push() and pop() in 15 minutes. The question: "Create a function that takes a

He remembered from Sumita Arora: "A function that checks primality." He remembered Example 5.6 : "Pushing valid data onto a stack."

Implement a stack using a list.