标签云
| # | 标题 | 解出人数 | |
|---|---|---|---|
| 1979 |
|
8.4 | x 2 |
| 1978 |
|
8.1 | x 4 |
| 1977 |
|
8.1 | x 4 |
| 1976 | Common Subsequence | 4.9 | x 24 |
| 1975 |
|
9.3 | x 2 |
| 1974 |
|
8.2 | x 4 |
| 1973 |
|
4.4 | x 12 |
| 1972 |
|
5.9 | x 7 |
| 1971 |
|
9.9 |