x=5 y=x++ почему отсюда выходит что y=5,x=6???

Answer 1

x++ creates a copy of x, use it, and then increment the original x. In other words, x++ returns the original value of x before incrementing it.

https://www.sololearn.com/Discuss/407846/?ref=app

Answer 2

x++ выполняется после y=x
а если написать y=++x то будет x=6, y=6

Answer 3

x++
--> the step you r doing this...there the value remains same...
--> after that line it gets increased by 1
++x
-->the step you r doing this on that line it gets increased by value 1

eg: x=5
printf("%d",x++)--> 5

x=t
printf("%d",++x)--> 6