"Works on my IDE" is not a kata issue. The problem is that you just have hardcoded two sample test cases. Your method should work with arbitrary DNA strings as input.

works a treat in my IDE but only passes three tests in here.
when i use the input from the failed tests, i get the right(exoected) output...confused.com lol
ps its with Java

got it thanks!
i was overthinking it

Non-timing out (i.e. correct) solution is still on 7 kyu level, so in case of this kata, it can.

Check how long your solution takes for 1000 tests with inputs of magnitude 2_000_000_000 when run locally, and if it's too slow, think how to improve it.

that shouldnt affect it much though,should it?
particularly for a 7kyu kata

So far so good.
Now, there's 1000 tests of this magnitude.

literally a few seconds
the result is 1000000000

How fast does your solution work for n=2_000_000_000?

ted...passed the first test and then failed with timed out error.
its literally 3 lines of code and actually efficient i think.
workd a brease in my IDE.

my soluition works on my IDE but only works with 1 test here
wish i can post my solution here because i think the tests are wrong and the solution scope only has a certain variation of answers

8 numbers not the sum of the numbers

same here
tested my code on my IDE and its working fine but not on here..Strange