What doe the following code mean ? Why use it ?
#ifdef _DEBUG
freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
#endif
# | User | Rating |
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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 |
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1 | cry | 166 |
2 | -is-this-fft- | 161 |
3 | Dominater069 | 160 |
3 | Qingyu | 160 |
5 | atcoder_official | 158 |
6 | adamant | 155 |
7 | Um_nik | 152 |
8 | djm03178 | 151 |
8 | luogu_official | 151 |
10 | awoo | 148 |
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 | |
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en1 |
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if-then-explorer | 2020-09-04 15:33:39 | 192 | Initial revision (published) |
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