Demonstrate insert and erase.


#include <iostream>
#include <vector>
using namespace std;

int main()
{
  vector<int> v(5, 1);
  int i;

  cout << "Size = " << v.size() << endl;
  cout << "Original contents:\n";
  for(i = 0; i <v.size(); i++) 
     cout << v[ i ] << " ";
  cout << endl << endl;

  vector<int>::iterator p = v.begin();
  p += 2;

  v.insert(p, 10, 9);

  cout << "Size after insert = " << v.size() << endl;
  cout << "Contents after insert:\n";
  for(i = 0; i <v.size(); i++) 
     cout << v[ i ] << " ";
  cout << endl << endl;

  p = v.begin();
  p += 2;  
  v.erase(p, p+10); 

  cout << "Size after erase = " << v.size() << endl;
  cout << "Contents after erase:\n";
  for(i = 0; i <v.size(); i++) 
     cout << v[ i ] << " ";
  cout << endl;

  return 0;
}

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Demonstrate insert and erase. : Vector « Data Structure « C++

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