@[ztrztr](/user/602124) qwq 这里似乎要加括号
```diff
- dp[j][i] = max(dp[j][i - 1], dp[j + 1 << (i - 1)][i - 1]);
+ dp[j][i] = max(dp[j][i - 1], dp[j + (1 << (i - 1))][i - 1]);
```
by Argvchs @ 2023-09-02 13:12:56
@[ztrztr](/user/602124)
```cpp
dp[j][i] = max(dp[j][i - 1], dp[j + 1 << (i - 1)][i - 1]);
```
改成
```cpp
dp[j][i] = max(dp[j][i - 1], dp[j + (1 << (i - 1))][i - 1]);
```
原因是 `<<` 运算优先级较低，先加减、在左右移
by Iniaugoty @ 2023-09-02 13:13:15
@[Argvchs](/user/533270) @[gty314159](/user/768612)
感谢,AC 了
by ztrztr @ 2023-09-02 13:18:41