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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. typedef vector<vector<int>> VecInt2D;
  6.  
  7. void erase_a_row(VecInt2D& v, size_t where)
  8. {
  9. 	if ( !(where >= 0 && where < v.size()))
  10. 	   return;
  11.     v.erase(v.begin() + where);
  12. }
  13.  
  14. int main() {
  15. 	VecInt2D myVect(10);
  16. 	cout << myVect.size() << "\n";
  17. 	// erase the last item
  18. 	erase_a_row(myVect, myVect.size() - 1);
  19. 	cout << myVect.size() << "\n";
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 3272KB
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10
9
https://ideone.com/xvDpjT
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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