Compilare: main.cpp: In function 'bool cauta(int)': main.cpp:20:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | while(i < h[nr].size() && h[nr][i] != x)i++; | ~~^~~~~~~~~~~~~~ main.cpp:21:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | if(i < h[nr].size())return 1; | ~~^~~~~~~~~~~~~~ main.cpp: In function 'void sterge(int)': main.cpp:34:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | while(i < h[nr].size() && h[nr][i] != x){ | ~~^~~~~~~~~~~~~~ main.cpp:37:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | if(i < h[nr].size()){ | ~~^~~~~~~~~~~~~~