trmv.cpp: In function 'void dijkstra()': trmv.cpp:30: warning: comparison between signed and unsigned integer expressions trmv.cpp: In function 'int main()': trmv.cpp:52: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x trmv.cpp:52: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x trmv.cpp:53: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x trmv.cpp:53: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x