Compilare: main.cpp: In function 'int main()': main.cpp:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(int i = 1; i < s1.size(); i++){ | ~~^~~~~~~~~~~ main.cpp:33:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | while(i + z[i] < s1.size() && s1[i + z[i]] == s1[z[i]]){ | ~~~~~~~~~^~~~~~~~~~~ main.cpp:44:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int i = 1; i < s2.size(); i++){ | ~~^~~~~~~~~~~