Compilare: main.cpp: In function 'void set_true(int)': main.cpp:29:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | while(i < buckets[x_bucket].size() && v[ buckets[x_bucket][i] ] != x) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:32:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | if(i < buckets[x_bucket].size()) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~