@B1ts it's a standard codewars compiler.

As already was mentioned by @GurovSD, Golang has a problem.
Two tests with an empty arrays. According to tests, the first result should be true and the second is false.
Look at this output:

[121 144 19 161 19 144 19 11]
[121 14641 20736 361 25921 361 20736 361]
true

[121 144 19 161 19 144 19 11]
[231 14641 20736 361 25921 361 20736 361]
false

[121 144 19 161 19 144 19 11]
[121 14641 20736 36100 25921 361 20736 361]
false

[]
[]
true

[]
[25 49]
false

[121 144 19 161 19 144 19 11 1008]
[121 14641 20736 36100 25921 361 20736 361]
false

[-10000000 100000000]
[100000000000000 10000000000000000]
true

[10000001 100000000]
[100000000000000 10000000000000000]
false

[2 2 3]
[4 9 9]
false

[2 2 3]
[4 4 9]
true

[-121 -144 19 -161 19 -144 19 -11]
[121 14641 20736 361 25921 361 20736 361]
true

[]
[121 14641 20736 361 25921 361 20736 361]
false

[]
[]
true

Test Failed
Log
Expected
    <bool>: true
to equal
    <bool>: false

Absolutely the same issue in Golang.
Look at this output:

[121 144 19 161 19 144 19 11]
[121 14641 20736 361 25921 361 20736 361]
true

[121 144 19 161 19 144 19 11]
[231 14641 20736 361 25921 361 20736 361]
false

[121 144 19 161 19 144 19 11]
[121 14641 20736 36100 25921 361 20736 361]
false

[]
[]
true

[]
[25 49]
false

[121 144 19 161 19 144 19 11 1008]
[121 14641 20736 36100 25921 361 20736 361]
false

[-10000000 100000000]
[100000000000000 10000000000000000]
true

[10000001 100000000]
[100000000000000 10000000000000000]
false

[2 2 3]
[4 9 9]
false

[2 2 3]
[4 4 9]
true

[-121 -144 19 -161 19 -144 19 -11]
[121 14641 20736 361 25921 361 20736 361]
true

[]
[121 14641 20736 361 25921 361 20736 361]
false

[]
[]
true
Test Failed
Log
Expected
    <bool>: true
to equal
    <bool>: false

In the details writen "A word (string) of length 0 < str < 1000" but string of len 0 also has present.

Thanks. This line just confused me (from the go doc):

"func Trunc(x float64) float64

Trunc returns the integer value of x."

What is difference between math.Trunc(num) and just int(num) ?

Great!