Compilare: main.cpp: In function 'int main()': main.cpp:24:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for ( i = 1; i < s.size(); i++ ) { | ~~^~~~~~~~~~ main.cpp:27:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | while ( i + z[i] < s.size() && s[z[i]] == s[i + z[i]] ) | ~~~~~~~~~^~~~~~~~~~ main.cpp:35:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for ( i = 0; i < s.size(); i++ ) { | ~~^~~~~~~~~~ main.cpp:36:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | if ( z[i] == pat.size() ) | ~~~~~^~~~~~~~~~~~~ main.cpp:41:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for ( i = 0; i < ans.size() && i < MAX_SOL; i++ ) | ~~^~~~~~~~~~~~ main.cpp:15:9: warning: variable 'l' set but not used [-Wunused-but-set-variable] 15 | int l, r, i; | ^