This macro: #ifndef ONLINE_JUDGE not working

help
1

This macro:

#ifndef ONLINE_JUDGE
freopen(“a.txt”, “r” , stdin);
freopen(“a.out”, “w”, stdout);
#endif

is not working in this code: http://ideone.com/GXsXv4
Please tell me why and how will it work now?
I am working on Ubuntu 12.04 platform, will this macro only work for online compilers?

2

How to put more than one tag?

3

Okay i am sorry that was my mistake…!!

Check this code this will work: http://ideone.com/Nbqwql

Use a.in and not a.txt

#ifndef ONLINE_JUDGE
freopen("a.in", "r" , stdin);
freopen("a.out", "w", stdout);
#endif
4

When I compile it on Ubuntu 12.04 platform, it is not taking inputs?

5

it works on codeblocks in windows…!! dont know why is this not working in ubuntu!!

6

Okay then try to implement second answer mentioned on this link: http://discuss.codechef.com/questions/59681/how-to-get-time-of-execution-in-cclosed