Compilare: main.cpp: In function 'bool check(std::vector<std::__cxx11::basic_string<char> >&, int)': main.cpp:9:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 9 | for (int seqIdx = 0; seqIdx < seqs.size(); seqIdx++) { | ~~~~~~~^~~~~~~~~~~~~ main.cpp:10:33: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 10 | if (seqs[seqIdx].size() < len) { | ~~~~~~~~~~~~~~~~~~~~^~~~~ main.cpp:19:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (int start = 1; start <= seqs[seqIdx].size() - len; start++) { | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:27:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for (int idx = 1; idx < seqs.size() && all; idx++) { | ~~~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:9: warning: unused variable 'result' [-Wunused-variable] 52 | int result = 0; | ^~~~~~