reactii.cpp: In function 'interval unite(interval, interval)': reactii.cpp:22: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x reactii.cpp: In function 'int main()': reactii.cpp:33: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x reactii.cpp:33: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x