Compilare: main.cpp: In function 'void Build_LPS()': main.cpp:20:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(i=1;i<a.size();i++){ | ~^~~~~~~~~ main.cpp: In function 'void Compute_Matches()': main.cpp:40:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(i=0;i<b.size();i++){ | ~^~~~~~~~~ main.cpp:50:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | if(j == a.size()){ | ~~^~~~~~~~~~~