Compilare: main.cpp: In function 'int update(int, int)': main.cpp:26:1: warning: no return statement in function returning non-void [-Wreturn-type] 26 | } | ^ main.cpp: In function 'int solve(std::string, std::string)': main.cpp:46:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for (int i = 0; i < a.size(); i++) | ~~^~~~~~~~~~ main.cpp:50:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for (int i = 0; i < b.size(); i++) | ~~^~~~~~~~~~