Creating a tree pattern using looping

[Docbyte]

I am new to C++ and have a problem in a class I am taking.I am having trouble trying to create this the way my professor wants. this is what is required from the program:
Write a complete program that prints out a “tree” of asterisks with the number of lines specified by the user.
The following output is a five-line tree:
1 *
2 ***
3 *****
4 *******
5 *********

I have this as the loop;

for(i = 1; i <= lines; i++)
	{
		for (int l = 1; l <= lines; l++) // prints line number
		cout << l <<endl;
		cout<<endl;
		{
		for (k = 1; k <= i; k++)  // calculation to print spaces
		cout << " ";
		}
		for(j = 1; j <= i; j++)  // calculation to print start
		cout<<"*";
	cout<<endl;
	}

It prints this
1
2
3
4
5
*
1
2
3
4
5
**
etc.. My question is can some one point me in the direction to get the loop to output like the first example.

Thanks

[moorecm]

Read the output from left to right, top to bottom. That is the order that the characters need to be written.

[Chemical Engineer]

You can easily do this program with just two for loops total. One is inside the other. If your program has more than two for loops, you're probably making a mistake.

Also, you don't need to use endl unless you want to skip to the next line. You should only have one endl in the entire program.