View Compilation Error

0_0_18091777_12078.cpp:45:23: error: variable or field 'dfs' declared void
 inline void dfs(cosnt int &u,const int &l=0)
                       ^
0_0_18091777_12078.cpp:45:17: error: 'cosnt' was not declared in this scope
 inline void dfs(cosnt int &u,const int &l=0)
                 ^
0_0_18091777_12078.cpp:45:30: error: expected primary-expression before 'const'
 inline void dfs(cosnt int &u,const int &l=0)
                              ^