View Compilation Error

0_0_21849213_31592.cpp:80:29: error: expected '}' at end of input
                 swap(f1, f2);
                             ^
0_0_21849213_31592.cpp: In member function 'std::vector<std::pair<int, int> > HDL::path(int, int)':
0_0_21849213_31592.cpp:80:29: error: expected '}' at end of input
0_0_21849213_31592.cpp:80:29: error: expected '}' at end of input
0_0_21849213_31592.cpp:80:29: error: expected '}' at end of input
0_0_21849213_31592.cpp: At global scope:
0_0_21849213_31592.cpp:80:29: error: expected unqualified-id at end of input