tkoyama010 
| Country/Region |  Japan |
|---|---|
| Birth Year | 1987 |
| X(Twitter) ID | @tkoyama010 |
| TopCoder ID | tkoyama010 |
| Codeforces ID | tkoyama010 |
| Affiliation | 燈株式会社／Akari Inc. |
tkoyama010 
| Country/Region | Japan |
|---|---|
| Birth Year | 1987 |
| X(Twitter) ID | @tkoyama010 |
| TopCoder ID | tkoyama010 |
| Codeforces ID | tkoyama010 |
| Affiliation | 燈株式会社／Akari Inc. |