# algorithm_2024

algorithm_2024

## 错题本

### Luogu某题

#### 数组越界导致变量异常更改

### [OJ4980:拯救行动](http://noi.openjudge.cn/ch0205/4980/)

#### 未考虑无答案（特殊情况）时输出

#### 优先对联是从大到小排序，重载运算符时需反向或者std::greater
```cpp
struct Status{
    Point now;
    ll step;
    bool operator<(const Status &that)const noexcept{
        return this->step > that.step;
    }
};

std::priority_queue<Status> q;
```