lanterna.cpp: In function 'void bfs1()': lanterna.cpp:25: warning: comparison between signed and unsigned integer expressions lanterna.cpp: In function 'void bfs(int)': lanterna.cpp:42: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x lanterna.cpp:42: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x lanterna.cpp:48: warning: comparison between signed and unsigned integer expressions 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: In function 'int main()': lanterna.cpp:78: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x lanterna.cpp:78: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x lanterna.cpp:79: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x lanterna.cpp:79: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x