katfresal
Olympiad Rating: 1200
Problem rating: 19
Contribution: 0
Country: RU
Occupation: Other
About:
Problems solved: 11
| Many digits | Sum of four | 2020 digit |
| Tommorow's day | Relatively prime with 2020 | Switchers |
| Test | Temirlan's cake | Numbers ratio |
| Money date | Cubical squares |
Games
Under construction