maxtri.cpp: In function 'void df(int)': maxtri.cpp:16: warning: comparison between signed and unsigned integer expressions maxtri.cpp:19: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x maxtri.cpp:19: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x maxtri.cpp: In function 'void df2(int)': maxtri.cpp:36: warning: comparison between signed and unsigned integer expressions maxtri.cpp:39: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x maxtri.cpp:39: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x maxtri.cpp: In function 'void df3(int)': maxtri.cpp:75: warning: comparison between signed and unsigned integer expressions maxtri.cpp: In function 'void df4(int)': maxtri.cpp:95: warning: comparison between signed and unsigned integer expressions maxtri.cpp:105: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x maxtri.cpp:105: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x