what happens if the for loop starts and ends at the same value? -

say have pseudo code says :

for 1 1 'something'

would loop iterate through once , 'something' , fail, or loop fail straight away , 'something' never executed?

the question analyse complexity in relation n, of pseudo code:

    := 1 1         j := n - n^2 n^2 - 1             k = 0; 

as pseudo code, for 1 1 should execute once, going notion intuitively, for 1 2 in pseudo code should execute twice.

if share context observed or algorithm itself, perhaps, more. else might turn out xy problem.

edit:

as per updates, in opinion, first loop exists see if reader understands notion of complexity. , should safe assume, first loop executes once.