Compilare: main.cpp: In function 'int main()': main.cpp:85:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | if (res == ap[x].size()) | ~~~~^~~~~~~~~~~~~~~ main.cpp:97:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 97 | if (res == ap[x].size()) | ~~~~^~~~~~~~~~~~~~~ main.cpp:116:34: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 116 | for (int j = p[i]; j < ap[pref[i]].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~