Compilare: main.cpp: In function 'int main()': main.cpp:23:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for(int i = 1; i<s.size(); i++) | ~^~~~~~~~~ main.cpp:59:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int i = 1; i<srev.size(); i++) | ~^~~~~~~~~~~~ main.cpp:85:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for(int i = b.size() + 1; i<s.size(); i++) | ~^~~~~~~~~ main.cpp:91:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 91 | for(int i = srev.size() - 1; i>=brev.size() + 1; i--) | ~^~~~~~~~~~~~~~~~~ main.cpp:110:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 110 | for(int i = 1; i<=a.size() - b.size() + 1; i++) | ~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:121:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 121 | for(int i = 1; i<=b.size() / 2; i++) | ~^~~~~~~~~~~~~~