@[XiaoYiii](/user/1025891) 你的 H 数组也要开M
by yyandy @ 2024-02-10 14:00:42
@[angiing1222](/user/718025) ？
```cpp
for(int j = h[i]; j != -1; j = g[j].next){
maxx = Max(maxx, f[g[j].from - 1] - g[j].from + 1);
}
```
这段语句最多执行 $n$ 次，不管外面有几重循坏，因为最多只有 $n$ 个区间
by XiaoYiii @ 2024-02-10 14:02:08
@[yyandy](/user/234101) 谢谢，已经AC力
by XiaoYiii @ 2024-02-10 14:03:40
@[XiaoYiii](/user/1025891) (
没看清题
by angiing1222 @ 2024-02-10 14:05:03