Compilare: main.cpp: In function 'void ins(int, int)': main.cpp:11:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 11 | for(int j = 0; j < hashh[x].size(); j++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void del(int)': main.cpp:19:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for(int j = 0; j < hashh[x].size(); j++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void search(int, int)': main.cpp:29:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int j = 0; j < hashh[x].size(); j++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:45:28: warning: comparison of integer expressions of different signedness: 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 45 | while(hashh.size() <= x) | ~~~~~~~~~~~~~^~~~