View Compilation Error

0_0_17366311_3756.cpp: In function 'void dfs(int, int, int)':
0_0_17366311_3756.cpp:37:18: error: expected primary-expression before '<' token
   if(nx < n & 0 =< nx & ny < m & 0 =< ny & maze[nx][ny] != 'X') {
                  ^
0_0_17366311_3756.cpp:37:37: error: expected primary-expression before '<' token
   if(nx < n & 0 =< nx & ny < m & 0 =< ny & maze[nx][ny] != 'X') {
                                     ^