i want to add some vectors<string> into a vector called spamscontent vector<???> spamscontent; for(int i=0;i<spam;i++) spamscontent.push_back(linesnames(spamnames)); //linesnames returns a vector <string> how should i declare spamscontent?
since linesnames returns a vector of type string you should declare spamcontents as vector< vector<string> > since spamcontent is going to hold a values of type vector<string>
