johnie.cpp: In function 'int main()': johnie.cpp:35: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:35: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:36: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:36: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:47: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:47: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:48: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:48: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x johnie.cpp:76: warning: comparison between signed and unsigned integer expressions johnie.cpp:83: warning: comparison between signed and unsigned integer expressions johnie.cpp: In function 'void euler(int, int)': johnie.cpp:93: warning: unused variable 'i'