View Compilation Error

0_0_32866020_19700.cpp:1:17: error: 'xmaps' does not name a type
                 xmaps[now.x][now.y] = next.x;
                 ^
0_0_32866020_19700.cpp:2:17: error: 'ymaps' does not name a type
                 ymaps[now.x][now.y] = next.y;//https://blog.csdn.net/linmushi/article/details/48547733
                 ^