iepuras.cpp: In function 'void read()': iepuras.cpp:54: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x iepuras.cpp:54: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x iepuras.cpp:63: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x iepuras.cpp:63: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x iepuras.cpp: In function 'void swapWalls()': iepuras.cpp:124: warning: comparison between signed and unsigned integer expressions iepuras.cpp:128: warning: comparison between signed and unsigned integer expressions