Thread: Programming Contest Questions

I am going to a computer science contest tomorrow and would appreciate some help on a few problems that I can not figure out. Any explanations would be truly appreciated. (C++ is the language used)

1) What is the result of the following expression:
1 + 2 , 3 * 4 , 5 / 6 , 7 - 8
A. 3
B. 0
C. -1
D. 12
E. 14

2) What is the result of the following expression:
4 << 3 << 2 << 1
A. 256
B. 4000000
C. 512
D. 1000000000
E. undefined

Also, could someone please explain these operators?
| & ^

Thanks in advance for your help!

I was born in Texas.....Yeeeeeee Haaaaaaaaw.

1) Compile and print the expressions and see what you get
2) Compile and print the expression and see what you get

"|" is logical OR
"&" is logical AND
"^" is logical XOR

gg

1 + 2 , 3 * 4 , 5 / 6 , 7 - 8

That is just one expression, look up the comma operator in your C++ book or online to see how it works. The answer is pretty to easy see as most of the expression is useless.