Help to solve this problem

Please help!!!

Use a single subscribed array to solve the following
problem. Read in 20 numbers, each of which is between
10 and 100, inclusive. As each number is read, print
it only if it is not a duplicate of a number already
read. Provide for the "worst case" in which all 20
numbers are different. Use the smallest possible array
to solve this problem.

dude wtf we are not going to just do all the work for you.

a loop and a flag will solve a lot of programming problems.

Romashka, we don't do homework assignments if you don't present a clue that you tried to solve it alone.

Post a specific question you have with this problem.