The sum of all elements between k1'th and k2'th smallest elements
The sum of all elements between k1'th and k2'th smallest elements is a DSA topic. In plain words you use it for a short The sum of all elements between k1'th and k2'th smallest elements example in a short dry-run on paper. Don’t start with a slogan — start with that picture.
Smallest example: the smallest The sum of all elements between k1'th and k2'th smallest elements example you can type. Type it, run it, and say what you see. If you can do that from memory, you know The sum of all elements between k1'th and k2'th smallest elements.
From the example next to this theory: The sum of all elements between k1'th and k2'th smallest elements: dry-run [4, 1, 3].
Trap: only saying “The sum of all elements between k1'th and k2'th smallest elements” with no example. Fix that before you talk about advanced DSA.
Viva: what is The sum of all elements between k1'th and k2'th smallest elements? Then show the smallest The sum of all elements between k1'th and k2'th smallest elements example you can type. Then name the trap.
What is The sum of all elements between k1'th and k2'th smallest elements? Show this: the smallest The sum of all elements between k1'th and k2'th smallest elements example you can type. Trap: only saying “The sum of all elements between k1'th and k2'th smallest elements” with no example.