trenuri1.cpp: In function 'void pre_dfs(int, int)': trenuri1.cpp:37: warning: 'auto' will change meaning in C++0x; please remove it trenuri1.cpp:37: error: expected initializer before ':' token trenuri1.cpp:236: error: expected primary-expression at end of input trenuri1.cpp:236: error: expected ';' at end of input trenuri1.cpp:236: error: expected primary-expression at end of input trenuri1.cpp:236: error: expected ')' at end of input trenuri1.cpp:236: error: expected statement at end of input trenuri1.cpp:36: warning: unused variable 'ok' trenuri1.cpp:236: error: expected '}' at end of input