thx bro. I appriciate it

https://stackoverflow.com/questions/2696812/varying-behavior-for-possible-loss-of-precision
https://stackoverflow.com/questions/8710619/why-dont-javas-compound-assignment-operators-require-casting

this is strange. When I write this code:

int sum = Math.pow(1,2);

I will get an error message which says: "Cannot convert from double to int".

But why does your notation ->> sum += Math.pow(a ,b); works?

if you rewrite this to -> sum = sum + Math.pow(); <<- it wont work!

Could you please explain?

how familiar is it to me..

also i have a problem with a random tests.
i got it that i should return 0 in this cases but my "if-expression" leads me to fail
my english is so weak..

:/ It's written in the description, tho... :/

i can't imagine how can i check this input "int[][]{}".
i passed through 4/5 tests, pls help me

read the description? ;p

shouldHandleNullOrEmptyIntervals
Test Failed
What should I do?
(java)

thx a lot for a hint