Compilare: main.cpp: In function 'int main()': main.cpp:27:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(i=1;i<s.size();i++) | ~^~~~~~~~~ main.cpp:32:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | while(i+z[i]<s.size() && s[z[i]]==s[i+z[i]]) | ~~~~~~^~~~~~~~~ main.cpp:49:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for(i=n+1;i<s.size() && j<1000;i++) | ~^~~~~~~~~