Compilare: main.cpp: In member function 'int fast_map::get_elem(int, int)': main.cpp:31:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<fast_elem>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | while( i < v[x].size() && ( v[x][i].poz1 != poz1 || v[x][i].poz2 != poz2 ) ){ | ~~^~~~~~~~~~~~~ main.cpp:35:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<fast_elem>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | if( i < v[x].size() ){ | ~~^~~~~~~~~~~~~