johnie.cpp: In function 'int main()': johnie.cpp:30: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:30: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:40: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:40: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:59: warning: comparison between signed and unsigned integer expressions johnie.cpp:72: warning: comparison between signed and unsigned integer expressions johnie.cpp:80: warning: comparison between signed and unsigned integer expressions