20. Predict the output or error(s) of the following c code

1
2
3
4
5

 main()
{
	int i=5;
	printf("%d%d%d%d%d%d",i++,i--,++i,--i,i);
}

Answer:
45545

Explanation:
The arguments in a function call are pushed into the stack from left to right. The evaluation is by popping out from the stack. and the evaluation is from right to left, hence the result.