GO Classes Test Series 2024 | Programming | Test 3 | Question: 16

Answer 1

Here variable x is sent into function “func” as pass by reference. The function “func” will be called 5 times. In the last function call, the value of ‘x’ will be made to 1 and 1 will be returned to the local variable ‘t’ of the 4^th function call. Here the value of ‘t’ and ‘x’ will be added and stored in local variable f and returned to local variable ‘t’ of the 3^rd function call, Again the process continues till the initial function call and 5 will be given to local variable ‘t’ of 1^st function call. That ‘t’ and value of ‘x = 3’ (5 + 3 = 8)will be added and returned to main() function to print. 

(The function calls, return values and value of x are clearly drawn and shown in image please refer it)

Here totally 5 times the value of x will be changed.

Simply, 1 + 1 + 1 + 2 + 3 + 5 = 8 (w.r.t function calls)