Compilare: main.cpp: In function 'void getlcp(std::string, int)': main.cpp:30:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for ( int i = 1; i < w.length(); ++i ) { | ~~^~~~~~~~~~~~ main.cpp:34:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | while ( i + lcp[k][i] < w.length() && w[i + lcp[k][i]] == w[lcp[k][i]] ) ++lcp[k][i]; | ~~~~~~~~~~~~~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:43:13: warning: unused variable 'mx' [-Wunused-variable] 43 | int n, m, mx; | ^~