Question

what is the syntex of scanf function ?

Answer 1

The scanf function allows you to accept input from standard in, which for us is generally the keyboard. Thescanf function can do a lot of different things, but it is generally unreliable unless used in the simplest ways. ... The scanf function uses the same placeholders as printf: int uses %d. float uses %f.

Answer 2

i don't use scanf
but i use cout nd cin
cout << " hello " ;
cin >> i ;