View Compilation Error

0_0_36713126_8373.cpp:8:2: error: #endif without #if
 #endif // poj
  ^
0_0_36713126_8373.cpp: In member function 'void fastIO::Ostream_fwrite::print(double, int)':
0_0_36713126_8373.cpp:114:1: error: expected primary-expression before ',' token
 ,10000000000LL,100000000000LL,1000000000000LL,10000000000000LL,
 ^
0_0_36713126_8373.cpp:115:3: error: expected primary-expression before ',' token
 LL,1000000000000000LL,10000000000000000LL,100000000000000000LL};
   ^
0_0_36713126_8373.cpp: At global scope:
0_0_36713126_8373.cpp:149:1: error: 'stack' does not name a type
 stack<int> S;
 ^
0_0_36713126_8373.cpp: In function 'void solver::dfsBCC(int, int)':
0_0_36713126_8373.cpp:162:1: error: 'S' was not declared in this scope
 S.push(u);
 ^
0_0_36713126_8373.cpp: In function 'void solver::init()':
0_0_36713126_8373.cpp:191:8: error: 'S' was not declared in this scope
 while(!S.empty()) S.pop();
        ^