View Compilation Error

0_0_32454686_1820.cpp:77:26: error: macro "MEM" passed 3 arguments, but takes just 2
  MEM(dis, -1, sizeof(dis));
                          ^
0_0_32454686_1820.cpp: In function 'bool BFS(int, int)':
0_0_32454686_1820.cpp:77:2: error: 'MEM' was not declared in this scope
  MEM(dis, -1, sizeof(dis));
  ^