C++

For an assignment I need to have a program print the inputted number, and every number before it in sequence ex:

1
12
123
1234
12345
123456

I can get it to print a list of the number but for the love of god I cant get it to print the numbers before hand.  I know theres a simple way to do it nesting a while loop in a for loop but I can't fucking figure it out.

Help for a poor retarded aspiring programmer?

>8
variable declarations in for statement are only valid in C99, not older C89/C90 or earlier nonstandard versions of C (and Visual C++ doesn't support C99 at, just something like C89/C90 and C++98/1x)

>9,11
stop whining

>>16
in old C, variables could only be defined at the beginning of a block - this restriction was lifted in C99

>>17
I'm surprised that /prog/ has so few C programmers who know this.

>>17
I meant to say declared, not defined

>>18
it is unfortunate