Using the FOR loop, how do I do...

[agwing]

I'm using the Visual Studio C++ and I need to do this output...

____1
___21
__321
_4321
54321

"-" are spaces.

I already got this...

1
12
123
1234
12345

and...

5
54
543
5432
54321

I am only allowed to use the FOR loop and setw.

[xander333]

Well, you use setw...

cout<<setw(5)<<left;

[kaduuk]

btw either your explanation or your topic name is incorrect :) one is only IF's, other is only FOR's..

xander333's explanation should work :)

[agwing]

I meant FOR.

@xander: Where exactly do I put that? in the code (I left my program in a USB with my friend, I can't post it right now, sorry).

All I remember is

{
int A,B;
{for(A=1, A <=5; A++)
for (B=1, B <=A; B++)
}}

Something like that...sorry about the "IF" thing.

[filipe]

Just add an int w = 5 to your outer loop and decrement it with each iteration.

[agwing]

Excuse my lack of C++ terminology, but can you do an example?

[filipe]

for(int i = 1, /*int */w = 5; i <= 5; ++i, --w)
{
    std::cout << setw(w);
    for(int j = i; j > 0; --j)
    {
        std::cout << j;
    }
    std::cout << std::endl;
}

I haven't tested or anything but it looks correct to me.

EDIT: there was a mistake in the for loop. I commented it out.

[sequba]

Maybe something like that:

for(int i=1 ; i <= 5 ; i++)
{
    for(int j=1 ; j <= (5-i) ; j++)
    std::cout<<" ";

    for(int j=i ; j >= 1 ; j--)
    std::cout<<j;

    std::cout<<"\n";
}