Compilare: main.cpp: In function 'int EvaluareExpresie(std::string)': main.cpp:39:16: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 39 | for (i = 0; i < Lungime; ++i) | ~~^~~~~~~~~ main.cpp:62:13: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 62 | while (i < Lungime && isdigit(Expresie[i])) | ~~^~~~~~~~~