你k+1爆ull了。。。
by Gemini7X @ 2020-03-24 23:34:11
```cpp
Gray(n,k+1);
```
by Gemini7X @ 2020-03-24 23:35:21
真巧我考试时也犯了这个错误。。。
by Gemini7X @ 2020-03-24 23:36:11
对的，我考试时也是手残把k左移（没必要）结果拿了95。
by 超体hypercube @ 2020-03-24 23:36:39
好像不只是k,是1ull<<n也爆掉了;
改成(1ull<<n-1)-k+(1ull<<n-1)就不会爆了
by Lucre @ 2020-03-24 23:46:56
那我是怎么错的？
by Gemini7X @ 2020-03-24 23:48:11
惊悚
by Gemini7X @ 2020-03-24 23:48:20
@[Flying_Bird](/user/328405) k+1也爆了。
似乎两个地方都爆了...
by 超体hypercube @ 2020-03-24 23:51:51