arbsum.cpp: In function 'void Dfs(int)': arbsum.cpp:14: warning: 'auto' will change meaning in C++0x; please remove it arbsum.cpp:14: error: expected initializer before ':' token arbsum.cpp:20: error: expected primary-expression before '}' token arbsum.cpp:20: error: expected ';' before '}' token arbsum.cpp:20: error: expected primary-expression before '}' token arbsum.cpp:20: error: expected ')' before '}' token arbsum.cpp:20: error: expected primary-expression before '}' token arbsum.cpp:20: error: expected ';' before '}' token