View Compilation Error

0_0_21860109_12045.cpp:28:11: error: 'MAXa' was not declared in this scope
 int du_in[MAXa];
           ^
0_0_21860109_12045.cpp: In function 'void init()':
0_0_21860109_12045.cpp:45:9: error: 'du_in' was not declared in this scope
  memset(du_in,0,sizeof(du_in));
         ^