Question

In C++: What is the opposite of ( x < 20 && x > 12)? please respond quickly and clearly, thank you!

Answer 1

Here x<20 && x>12 refers to numbers less than 20 and numbers greater than 12.

so the numbers satisfying this condition is 13,14...19. here first less than and greater than conditions are checked seperately, && means both conditions should be satisfied.

so the opposite of this condition is

x>=20 ll x<=12.

This includes the numbers which is either greater than or equal to 20 or the numbers which are less than or equal to 12.

ll is the or operator.