Question

ʙᴇʙᴇ ᴍᴀɴɴ'ᴅɪ ɴᴀ ᴍᴇʀɪ sᴜɴ sᴏʜɴᴇʏᴀ

ᴠᴇ ᴍᴀɪ ᴛᴇʀᴇ ɴᴀᴀʟ ᴠɪᴀʜ ᴋᴀʀᴠᴀᴜɴᴀ ❤︎​

Answer 1

A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, etc. and attracts or repels other magnets.

Answer 2

Algorithm is as follows: Divide the number in two parts with one part containing only the number at unit's place say part 'A', and other part say 'B', containing the remaining number. Now square the number at unit's place. The square will be one of these; {0,1,4,9,16,25,36,49,64,81}.