| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 990 | SECMC109 SEC-MC-109 11位手机号保留前3后4,中间星号应有? | 0 / 0 | 2 | |
| 1070 | SECMC189 SEC-MC-189 11位手机号题面要求保留前2后3,应遮几位? | 0 / 0 | 2 |
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