What doe the following code mean ? Why use it ?
#ifdef _DEBUG
freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
#endif
Question about some code
What doe the following code mean ? Why use it ?
#ifdef _DEBUG
freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
#endif
| Rev. | Lang. | By | When | Δ | Comment | |
|---|---|---|---|---|---|---|
| en1 |
|
if-then-explorer | 2020-09-04 15:33:39 | 192 | Initial revision (published) |
| # | User | Rating |
|---|---|---|
| 1 | jiangly | 3846 |
| 2 | tourist | 3799 |
| 3 | orzdevinwang | 3706 |
| 4 | jqdai0815 | 3682 |
| 5 | ksun48 | 3590 |
| 6 | Ormlis | 3533 |
| 7 | Benq | 3468 |
| 8 | Radewoosh | 3463 |
| 9 | ecnerwala | 3451 |
| 9 | Um_nik | 3451 |
| # | User | Contrib. |
|---|---|---|
| 1 | cry | 165 |
| 2 | -is-this-fft- | 161 |
| 3 | Qingyu | 160 |
| 4 | atcoder_official | 157 |
| 5 | Dominater069 | 156 |
| 6 | adamant | 154 |
| 7 | Um_nik | 151 |
| 7 | djm03178 | 151 |
| 9 | luogu_official | 149 |
| 10 | awoo | 147 |
