Compilare: main.cpp: In function 'int main()': main.cpp:177:21: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 177 | for (i64 i = 2; i < nd.size(); i++) { | ~~^~~~~~~~~~~ main.cpp:192:21: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 192 | for (i64 i = 0; i < h.size(); i++) { | ~~^~~~~~~~~~ main.cpp:206:13: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 206 | if (len == nd.size() - 1) { | ~~~~^~~~~~~~~~~~~~~~ main.cpp:213:21: warning: comparison of integer expressions of different signedness: 'i64' {aka 'long int'} and 'const long unsigned int' [-Wsign-compare] 213 | for (i64 i = 0; i < min((u6)1000, res.size()); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~