Compilare: main.cpp: In function 'void atribuire_cifre(std::__cxx11::string)': main.cpp:13:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < s.size(); i++) ~~^~~~~~~~~~ main.cpp: In function 'int convertire(std::__cxx11::string)': main.cpp:22:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < s.size(); i++) ~~^~~~~~~~~~ main.cpp: In function 'std::__cxx11::string desconvertire(int)': main.cpp:39:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (s.size() != 5) ^~ main.cpp:42:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' return s; ^~~~~~ main.cpp: In function 'void a_doua_cerinta()': main.cpp:77:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v.size(); i++) ~~^~~~~~~~~~