| Rank | Score | Rating | Date | Event | |
|---|---|---|---|---|---|
|
|
15
|
97 | · | July 21, 1990 |
IOI 1990
|
|
|
15
|
97 | · | July 21, 1990 |
2nd International Olympiad in Informatics. Soviet Union
|
|
|
10
|
81 | · | May 19, 1989 |
IOI 1989
|
|
|
10
|
81 | · | May 19, 1989 |
1st International Olympiad in Informatics. Bulgaria
|
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