样例2： ``` 5 5 -644 757 859 741 -778 -35 -842 -106 -942 -648 -805 729 350 -101 -548 623 954 -840 376 -308 -439 -323 -538 -82 541 ``` ``` 2574 ``` by dmx7u19x @ 2024-01-02 13:15:52