Compilare: user.cpp: In function ‘void doBFS(int)’: user.cpp:25: warning: comparison between signed and unsigned integer expressions user.cpp:32: warning: comparison between signed and unsigned integer expressions user.cpp:38: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void doREZ(int, int)’: user.cpp:48: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:75: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x user.cpp:75: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x