View Compilation Error

0_0_25039854_9864.cpp: In function 'int spfa()':
0_0_25039854_9864.cpp:45:10: error: expected unqualified-id at end of input
         q.
          ^
0_0_25039854_9864.cpp:45:10: error: expected '}' at end of input
0_0_25039854_9864.cpp:45:10: error: expected '}' at end of input