在《谷歌》？？？
by wangbinfeng @ 2024-02-06 16:47:52
@[wangbinfeng](/user/387009) 洛谷，人都昏头了.QAQ
by jiunichenyin @ 2024-02-06 16:48:53
for (int h = x - j; h <=x+j; ++h) {
for (int l = y - j; l <=y+j; ++l) {
int b = h - x, c = l - y;
int d = b;
b = c;
c = -d;
brr[b + x][c + y] = arr[h][l];
}
}
之一段明显的逻辑不好，你这样是很容易越界的，所以才会出现RE
by remake1958 @ 2024-02-16 00:39:43
@[remake1958](/user/1272803) 将
```
j=2*r+1;
j-=2;
```
改成j=r；就过了
之前j太大了
QWQ
by jiunichenyin @ 2024-02-16 17:33:40
对，你这样改就没事了，其实只要x-r和x+r这个范围就行
by remake1958 @ 2024-02-16 21:02:24