Compilare: main.cpp: In function 'void bkt(int, int, int)': main.cpp:14:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | if( (pos == k + 1 && a == 1) || ind == d[position].size() ){ | ~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for( int i = ind; i < d[position].size() && !ok; ++i ) | ~~^~~~~~~~~~~~~~~~~~~~