UB
by Etinorally @ 2022-07-11 20:26:54
```cpp
int x[1005],y[1005];
```
范围是0-1004
```cpp
for(int i = 1;i <= 1005;i++)
```
范围是1-1005
by zty1203 @ 2022-07-11 20:57:49
**数组下标越界**
```cpp
int x[1005],y[1005];
```
**应该为:**
```cpp
int x[1006],y[1006];
```
by whr0612 @ 2022-10-25 10:50:24