i think this is the easiest way for begginer :v

got it, thanks =)

You're returning a boolean (True/False), not the number in negative form.

Thanks =)

Nope, the lines . . ;

Test Passed: Value == z
... last argument - Expected: z, instead got: a

. . . or . . .

Test Passed: Value == c
... last argument - Expected: c, instead got: a

result from distinct tests.

Test Passed: Value == z
Test Passed: Value == c

. . . (which succeeded) are about last char of strings.

... last argument - Expected: z, instead got: a
... last argument - Expected: z, instead got: a

. . . (which failed) are about last argument of arguments.

eg, in :

last( arg1, arg2, arg3, ..., arg99 )

. . . last should return arg99 'cause it's the last argument.

Hope it helps.
; )

last (...)
should return...
Test Passed: Value == 10
Test Passed: Value == 10
Test Passed: Value == z
Test Passed: Value == z
... last argument - Expected: z, instead got: a
Test Passed: Value == 5

I think something is wrong.... Test Passed: Value == z ; ... last argument - Expected: z, instead got: a

With randomized lists, wait for...
Test Passed: Value == 2
Test Passed: Value == b
Test Passed: Value == c
... last argument - Expected: c, instead got: a

Again,... Test Passed: Value == c ; ... last argument -Expected: c, instead got: a