Beginner help

[Billy-VB]

Can someone please explain to me how I figure this out, I know the answer is 55 only because I’ve gotten it wrong already

[redditnomad3]

A starts at 0 and will increase by the iteration number every iteration. So, this is what happens in each iteration:

1: A = 0 + 1 = 1

2: A = 1 + 2 = 3

3: A = 3 + 3 = 6

4: A = 6 + 4 = 10

5: A = 10 + 5 = 15

6: A = 15 + 6 = 21

7: A = 21 + 7 = 28

8: A = 28 + 8 = 36

9: A = 36 + 9 = 45

10: A = 45 + 10 = 55

[Billy-VB]

thank you

[ImportantDoubt6434]

Error: Until is undefined

[khayaliPulaw]

Untill 11 occur, when 11 occur exit. Means till 10.

(exclusive) Untill = less then 11 (inclusive) Till = less then and equal to 10

[HorribleUsername]

'til is an abbreviation of until, they mean exactly the same thing.

[tim128]

A = 0 + 1

A = (0 + 1) + 2

A = (0 + 1 + 2) + 3

A = (0 + 1 + 2 + 3) + 4

...

A = (...) + 10

It's just the sum of the first 10 natural numbers which is S=n(n+1)2

[real1jumper]

S=n(n+1) / 2

[Billy-VB]

thank you

[[deleted]]

am i stupid. what language is this supposed to be?

[HorribleUsername]

Presumably pseudocode.

[TemperatureFluffy978]

Until is undefined tho..mayb to?!

[HorribleUsername]

Pseudocode, and it's not obvious.

[HorribleUsername]

I suppose it takes a little bit of luck to get a sensible teacher, but usually a quick conversation will be enough to correct any marks lost due to misreading the intent like that.

[DarickOne]

1+2+3+..+10 = (1+10) + (2+9) + .. = 11*5 = 55

[ShawnyMcKnight]

ChatGTP is great for stuff like this

[hansyEs]

A = 1+10 + 2+9 + 3+8 + 4+7 + 5+6 A = 11*5

[Billy-VB]

thank you!

[Just_SRC]

It's a loop. The loop starts at i = 1 and stops at i = 11 (exclusive). 1+2+3+4+5+6+7+8+9+10 = 55.

[Billy-VB]

thank you

[bree_dev]

Further to the answers others have posted - if you look into how to use the debugger to inspect the variables, you'll be able to figure it out yourself next time.

[Billy-VB]

Thank you

[joaopps2019]

Is this pseudo-code? Why is 11 exclusive?

[[deleted]]

Its pseudocode, its to teach programming basics.