Compilare: main.cpp: In function 'int getnumber(std::__cxx11::string, int&)': main.cpp:20:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<s.size()&&'0'<=s[j]&&s[j]<='9'){ ~^~~~~~~~~ main.cpp: In function 'std::__cxx11::string faraegal(std::__cxx11::string)': main.cpp:40:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<s.size();i++){ ~^~~~~~~~~ main.cpp: In function 'int gettermen(char, std::__cxx11::string, int&, int*)': main.cpp:52:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(;i<s.size();i++){ ~^~~~~~~~~ main.cpp:71:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<s.size()&&s[i]!='*'){ ~^~~~~~~~~ main.cpp: In function 'int rezolva_functie(char, int*, int&)': main.cpp:85:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(;i<s.size()&&s[i]!=')';i++){ ~^~~~~~~~~ main.cpp:88:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<s.size()&&s[i]=='-'){ ~^~~~~~~~~ main.cpp:90:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] }else if(i<s.size()&&s[i]=='+'){ ~^~~~~~~~~