Halogen's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 169 | 3656 | 913 | 72 | - | ||
| AtCoder Regular Contest 111 | 1324 | 1053 | 270 | +198 | ||
| AtCoder Beginner Contest 188 | 1295 | 1357 | 594 | +324 | ||
| AtCoder Beginner Contest 190 | 1267 | 1418 | 800 | +206 | ||
| ZONe Energy Programming Contest | 1808 | 1142 | 860 | +60 |