Compilare: main.cpp:7:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 7 | main() | ^~~~ main.cpp: In function 'int main()': main.cpp:10:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 10 | for (fill(v,v+size(s)+1,1<<30);i<size(s);B=max(b,B)) | ~^~~~~~~~ main.cpp:13:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | if (j<size(s)) | ~^~~~~~~~