labirint.cpp: In function 'void bkt(int, int, int)': labirint.cpp:30: warning: comparison between signed and unsigned integer expressions labirint.cpp:36: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x labirint.cpp:36: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x