this is common thing that happened to me when i solve a problem and i want to submit it then i got WA because of i forgot to comment my testing file input...↵
Now i saw that someone use this in main↵
- ↵
- #ifdef NEREVAR_PROJECT↵
- freopen("input.txt", "r", stdin);↵
- freopen("output.txt", "w", stdout);↵
- #endif ↵
↵
but i don't understand that many people use many different thing at the position "NEREVAR_PROJECT" .. then i am trying to copy that and use but it's not work in my text editor . ↵
plz explain me what is it and what it means and what it does...and how it use...↵
thanx in advance
Now i saw that someone use this in main↵
- ↵
- #ifdef NEREVAR_PROJECT↵
- freopen("input.txt", "r", stdin);↵
- freopen("output.txt", "w", stdout);↵
- #endif ↵
↵
but i don't understand that many people use many different thing at the position "NEREVAR_PROJECT" .. then i am trying to copy that and use but it's not work in my text editor . ↵
plz explain me what is it and what it means and what it does...and how it use...↵
thanx in advance
