ro.cpp: In function 'void dfs(int, int)': ro.cpp:17: warning: 'auto' will change meaning in C++0x; please remove it ro.cpp:17: error: expected initializer before ':' token ro.cpp:22: error: expected primary-expression before 'else' ro.cpp:22: error: expected ';' before 'else' ro.cpp:22: error: expected primary-expression before 'else' ro.cpp:22: error: expected ')' before 'else' ro.cpp:22: error: expected primary-expression before 'else' ro.cpp:22: error: expected ';' before 'else' ro.cpp:16: warning: unused variable 'fii' ro.cpp:85: error: expected '}' at end of input