urgenta.cpp: In function 'void READ()': urgenta.cpp:24: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x urgenta.cpp:24: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x urgenta.cpp: In function 'void KRUSKAL()': urgenta.cpp:67: warning: comparison between signed and unsigned integer expressions urgenta.cpp:80: warning: comparison between signed and unsigned integer expressions urgenta.cpp:89: warning: comparison between signed and unsigned integer expressions