Why we got -3 in it please explain this code

Question

https://code.sololearn.com/cB5GW2SXR8vv/?ref=app

Answer 1

a = -5

a++ is -5 and a = -4
++a is -3 and a = -3

k = (-4, -3) = -3

https://www.tutorialspoint.com/cplusplus/cpp_increment_decrement_operators.htm