Compilare: main.cpp: In function 'std::vector<std::pair<int, int> > toggle(bool)': main.cpp:25:23: warning: comparison of integer expressions of different signedness: 'int' and 'const long unsigned int' [-Wsign-compare] 25 | for (int i = 0; i < min (lin.size (), col.size ()); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:28:56: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for (int i = min (lin.size (), col.size ()); i < lin.size (); i++) | ~~^~~~~~~~~~~~~ main.cpp:31:56: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for (int i = min (lin.size (), col.size ()); i < col.size (); i++) | ~~^~~~~~~~~~~~~