Compilare: main.cpp: In function 'bool solve(ush, std::vector<std::pair<short unsigned int, short unsigned int> >, ush)': main.cpp:38:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < aux.size(); ++i ){ ~~^~~~~~~~~~~~ main.cpp:58:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < aux.size(); ++i ){ ~~^~~~~~~~~~~~ main.cpp:78:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < aux.size(); ++i ){ ~~^~~~~~~~~~~~ main.cpp:98:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < aux.size(); ++i ){ ~~^~~~~~~~~~~~