标签云
| # | 标题 | 解出人数 | |
|---|---|---|---|
| 1979 |
|
8.4 | x 2 |
| 1978 |
|
6.9 | x 6 |
| 1977 |
|
8.1 | x 4 |
| 1976 | Common Subsequence | 4.6 | x 26 |
| 1975 |
|
9.3 | x 2 |
| 1974 |
|
8.2 | x 4 |
| 1973 |
|
4.0 | x 14 |
| 1972 |
|
5.0 | x 9 |
| 1971 |
|
9.9 |