traseu1.cpp: In function 'void dfs(int, int)': traseu1.cpp:12: warning: comparison between signed and unsigned integer expressions traseu1.cpp: In function 'int main()': traseu1.cpp:27: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x traseu1.cpp:27: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x traseu1.cpp:28: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x traseu1.cpp:28: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x