How many times does a loop repeat and end value?

I am trying to figure this question out: Examine the following for loops and determine the value of ires at the end of each of the loops, and also the number of times each loop executes.

(a) ires = 0;
for index = -10:10
ires = ires + 1;
end
(b) ires = 0;
for index = 10:-2:4
if index == 6
continue;
end
ires = ires + index;
end
(c) ires = 0;
for index = 10:-2:4
if index == 6
break;
end
ires = ires + index;
end
(d) ires = 0;
for index1 = 10:-2:4
for index2 = 2:2:index1
if index2 == 6
break
end
ires = ires + index2;
end
end

These are my results: a) ires=21 b)ires=22 c) ires=18 d)ires=24

But i was hoping someone could look it over I am a bit unsure of the last two. Thank You!

Answer 1

[Image Analyst]

Why are you checking if the index equals 6? It doesn't look right at all. I'd do variants of

loopCounter = 0;
for index1 = 10:-2:4
    for index2 = 2:2:index1
        loopCounter = loopCounter + 1;
    end
end
fprintf('This loop iterated %d times.\n', loopCounter);

[Image Analyst]

Of course I know that. That's why I said variants . Do you really require me to do all cases (1) through (d) for you? I thought you'd be able to understand and do cases (a)-(c) if I just did case (d) for you - it's not hard. If I'm wrong let me know and I'll do all the cases for you.

And if you really want the breaking after the index = 6, you can put that in if you want (maybe it's just a part of the puzzle), you just need to decide if the iteration where it breaks is to be counted or not. If it is to be counted, put the loopCounter line before it, if it's not to be counted, put the loop counter after the "if" block.

[Pam]

Ok thank you I mean I do have my answers there so I understand the question I just wanted someone to see if they were okay. Thank you for more in depth information, I do appreciate it.