urgenta.cpp: In function 'void dfs(int, int)': urgenta.cpp:21: warning: comparison between signed and unsigned integer expressions urgenta.cpp: In function 'void citire()': urgenta.cpp:61: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x urgenta.cpp:61: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x urgenta.cpp: In function 'int main()': urgenta.cpp:81: warning: unused variable 'u' urgenta.cpp:81: warning: unused variable 'q' urgenta.cpp:145: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x urgenta.cpp:145: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x urgenta.cpp:149: warning: comparison between signed and unsigned integer expressions