mexc.cpp: In function 'int updateParinte(int)': mexc.cpp:31: warning: unused variable 'oldValue' mexc.cpp: In function 'void unite(int, int)': mexc.cpp:55: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x mexc.cpp:55: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x mexc.cpp:58: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x mexc.cpp:58: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x mexc.cpp: In function 'int main()': mexc.cpp:104: warning: comparison between signed and unsigned integer expressions mexc.cpp:121: warning: comparison between signed and unsigned integer expressions mexc.cpp:133: warning: comparison between signed and unsigned integer expressions mexc.cpp:152: warning: comparison between signed and unsigned integer expressions mexc.cpp:156: warning: comparison between signed and unsigned integer expressions