Compilare: main.cpp: In function 'void Read()': main.cpp:31:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < s.size(); i++) ~~^~~~~~~~~~ main.cpp:38:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < s.size() && 'a' <= s[i] && s[i] <= 'z') ~~^~~~~~~~~~ main.cpp: In function 'int Get_Dist(std::__cxx11::string, std::__cxx11::string)': main.cpp:56:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i <= B.size(); i++) ~~^~~~~~~~~~~ main.cpp:59:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i <= A.size(); i++) ~~^~~~~~~~~~~