View Compilation Error

0_0_19132523_21729.cpp:25:8: error: 'int64' does not name a type
 inline int64  nextI64() { int64  d; cin >> d; return d; }
        ^
0_0_19132523_21729.cpp:29:8: error: 'int64' does not name a type
 inline int64  nextlld() { int64 d; scanf("%lld", &d); return d; }
        ^
0_0_19132523_21729.cpp:30:8: error: 'int64' does not name a type
 inline int64  next64d() { int64 d; scanf("%I64d",&d); return d; }
        ^
0_0_19132523_21729.cpp: In function 'void init()':
0_0_19132523_21729.cpp:46:27: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
  for (int i = 1; i <= m + 3; i++)
                           ^
0_0_19132523_21729.cpp: In function 'int64 hoge()':
0_0_19132523_21729.cpp:105:3: error: 'top' was not declared in this scope
   top = find(r);
   ^
0_0_19132523_21729.cpp:106:3: error: 't' was not declared in this scope
   t = bool(k & er[r]);
   ^