dragoni.cpp: In function 'int main()': dragoni.cpp:36: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x dragoni.cpp:36: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x dragoni.cpp:38: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x dragoni.cpp:38: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x dragoni.cpp: In function 'void DFS(int)': dragoni.cpp:63: warning: comparison between signed and unsigned integer expressions dragoni.cpp: In function 'void bf(int)': dragoni.cpp:81: warning: comparison between signed and unsigned integer expressions