Compilare: user.cpp: In function ‘std::vector<int> reun(std::vector<int>, std::vector<int>)’: user.cpp:37:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<a.size(); i++){ ~^~~~~~~~~ user.cpp:38:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(bb < b.size() && b[bb] < a[i]){ ~~~^~~~~~~~~~ user.cpp:42:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (bb < b.size() && a[i] != b[bb]){ ~~~^~~~~~~~~~ user.cpp:47:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(bb < b.size()){ ~~~^~~~~~~~~~ user.cpp: In function ‘std::vector<int> inter(std::vector<int>, std::vector<int>)’: user.cpp:77:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<a.size(); i++){ ~^~~~~~~~~ user.cpp:78:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(bb < b.size() && b[bb] < a[i]){ ~~~^~~~~~~~~~ user.cpp:81:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (bb < b.size() && a[i] == b[bb]){ ~~~^~~~~~~~~~ user.cpp: In function ‘int rez()’: user.cpp:111:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (pnt < v.size() && v[pnt] != conv[')']){ ~~~~^~~~~~~~~~ user.cpp:124:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<now.size(); i++){ ~^~~~~~~~~~~ user.cpp:128:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i+1 < now.size() && now[i] == conv['*']){ ~~~~^~~~~~~~~~~~ user.cpp:134:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i < now.size()){ ~~^~~~~~~~~~~~ user.cpp:140:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=2; i<after.size(); i+=2){ ~^~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:197:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] v.push_back(conv[x]); ^