immortal.cpp: In function 'void bkt(int, int, int)': immortal.cpp:30: warning: comparison between signed and unsigned integer expressions immortal.cpp:47: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x immortal.cpp:47: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x immortal.cpp: In function 'int main()': immortal.cpp:63: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x immortal.cpp:63: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x