Compilare: main.cpp: In function 'void dolps()': main.cpp:14:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | while(i<t.size()) | ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:63:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for(auto e=0;e<sol.size();e++) | ~^~~~~~~~~~~