View Compilation Error

0_0_13411953_5820.cpp: In function 'void begin1()':
0_0_13411953_5820.cpp:24:39: error: cannot convert 'node' to 'void*' for argument '1' to 'void* memset(void*, int, size_t)'
         memset( stu[i],0,T*sizeof(int));
                                       ^
0_0_13411953_5820.cpp: In function 'bool getnum(int)':
0_0_13411953_5820.cpp:35:13: error: 'A' was not declared in this scope
         if( A[p] ) continue;
             ^
0_0_13411953_5820.cpp:36:9: error: 'A' was not declared in this scope
         A[p]=true;
         ^
0_0_13411953_5820.cpp:37:14: error: 'B' was not declared in this scope
         if( !B[p] || getnum(B[p]) )
              ^