Compilare: main.cpp: In function 'int main()': main.cpp:13:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(int i=0; i<s.size();i++) { | ~^~~~~~~~~ main.cpp:20:18: 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(int i=0;i<s.size();i++) { | ~^~~~~~~~~ main.cpp:26:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | while(i-l[i]-1>=0 and i+l[i]+1<s.size() and s[i-l[i]-1]==s[i+l[i]+1]) | ~~~~~~~~^~~~~~~~~