Use vector.at to change element in the vector : vector at « Vector « C++

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C++ » Vector » vector atScreenshots 
Use vector.at to change element in the vector
 
 

#include <iostream>
using std::cout;
using std::endl;

#include <vector>    // vector class-template definition
#include <algorithm> // copy algorithm
#include <iterator>  // ostream_iterator iterator
#include <stdexcept> // out_of_range exception

int main()
{
   int array12345};
   std::vector< int > integersarray, array + );
   std::ostream_iterator< int > outputcout, " " );

   integers.push_back);
   integers.push_back);
   integers.push_back);

   cout << "Vector integers contains: ";
   std::copyintegers.begin(), integers.end(), output );

   integers.at10// set element at position 2 to 10

   cout << "\n\nVector integers contains: ";
   std::copyintegers.begin(), integers.end(), output );

   return 0;
}

/* 
Vector integers contains: 1 2 3 4 5 6 2 3 4

Vector integers contains: 1 2 10 4 5 6 2 3 4 
 */        
  
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