Compilare: main.cpp: In function 'int main()': main.cpp:20:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(i=0;i<a.size();i++){ | ~^~~~~~~~~ main.cpp:24:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(i=1;i<b.size();i++){ | ~^~~~~~~~~ main.cpp:27:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(i=a.size()-1;i<b.size();i++){ | ~^~~~~~~~~ main.cpp:28:13: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | if(i==a.size()-1)valacm=dp[i]; | ~^~~~~~~~~~~~