Inserts an element into a vector at given position : vector insert « Vector « C++






  1. C++
  2. Vector
  3. vector insert

Inserts an element into a vector at given position

  
#include <iostream>
#include <string>
#include <vector>

using namespace std;

void insert(vector<string>& v, int pos, string s)
{  
   int last = v.size() - 1; 
   v.push_back(v[last]);
   for (int i = last; i > pos; i--)
      v[i] = v[i - 1];
   v[pos] = s;
}

void print(vector<string> v)
{  
   for (int i = 0; i < v.size(); i++)
      cout << "[" << i << "] " << v[i] << "\n";
}

int main()
{  
   vector<string> staff(5);
   staff[0] = "A";
   staff[1] = "B";
   staff[2] = "C";
   staff[3] = "D";
   staff[4] = "E";
   print(staff);

   int pos;
   cout << "Insert before which element? ";
   cin >> pos;

   insert(staff, pos, "New, Nina");
   print(staff);
   return 0;
}








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