View Compilation Error

0_0_19132529_10293.cpp: In function 'void init()':
0_0_19132529_10293.cpp:45:27: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
  for (int i = 1; i <= m + 3; i++)
                           ^
0_0_19132529_10293.cpp: In function 'int64 hoge()':
0_0_19132529_10293.cpp:104:3: error: 'top' was not declared in this scope
   top = find(r);
   ^
0_0_19132529_10293.cpp:105:3: error: 't' was not declared in this scope
   t = bool(k & er[r]);
   ^