fork download
copy 
  1. #include <vector>
  2. #include <string>
  3. #include <iostream>
  4.  
  5. using namespace std;
  6.  
  7. void print(vector<vector<string>> s)
  8. {
  9.     cout << "Lists:" << endl;
  10.     for (const auto& v : s)
  11.     {
  12.         cout << "List: ";
  13.         for (const auto& i : v)
  14.         {
  15.             cout << i << ", ";
  16.         }
  17.         cout << endl;
  18.     }
  19.     cout << "Done" << endl;
  20. }
  21.  
  22. int main()
  23. {
  24.     vector<vector<string>> slist;
  25.  
  26.     slist.push_back(vector<string>());
  27.     slist.push_back(vector<string>());
  28.  
  29.     print(slist);
  30.  
  31.  
  32.     const auto length = slist.size()-1;
  33.     slist[length].push_back("String"); // also tried slist.back().push_back("S");
  34.  
  35.     print(slist);
  36. }
Success #stdin #stdout 0s 3032KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Lists:
List: 
List: 
Done
Lists:
List: 
List: String, 
Done
https://ideone.com/14E6qO
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!