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| Online Judge | Problem Set | Authors | Online Contests | User | ||||||
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| ID | Title | Solved | Source |
|---|---|---|---|
| 1865 | Practice | 71 | Waterloo local 2004.09.25 |
| 1866 | Help! | 91 | Waterloo local 2004.09.25 |
| 1867 | Treequivalence | 80 | Waterloo local 2004.09.25 |
| 1868 | Antiarithmetic? | 575 | Waterloo local 2004.09.25 |
| 1869 | Test | 107 | Waterloo local 2004.09.25 |
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