Why am I getting this error during run-time?
it fixes the issue As exch_2 expects addresses as parameters, you would
have to call it exch_2(a,b);.You are passing the values, and these are
taken as addresses. If e. g. a has a value of 5, the computer would try to
use the value at address 5on you
Date : November 24 2020, 05:47 AM , By : Lê Thắng