lanterna.cpp: In function 'bool Dijkstra(int)': lanterna.cpp:60: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x lanterna.cpp:60: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x lanterna.cpp:75: warning: comparison between signed and unsigned integer expressions lanterna.cpp:84: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x lanterna.cpp:84: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x