Compilare: main.cpp: In function 'std::vector<int> zAlgo(std::string&)': main.cpp:12:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for(int i = 1, left = 0, right = 0; i < s.size(); i ++) { | ~~^~~~~~~~~~ main.cpp:15:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | while(i + z[i] < s.size() and s[z[i]] == s[i + z[i]]) | ~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:42:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for(int i = v.size() + 1; i <= s.size() + 1 ; i ++) { | ~~^~~~~~~~~~~~~~~ main.cpp:53:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(int i = 1; i <= v.size() / 2; i ++) | ~~^~~~~~~~~~~~~~~