Assign elements to vector using array-subscripting syntax. - C++ STL

Introduction

The number of elements in the vector is obtained by calling size().

Demo Code

#include <iostream>
#include <vector>
using namespace std;
void show(const char *msg, vector<int> vect);
int main() {// ww  w  .  j  av  a  2s .  c o m
   vector<int> v(10);
   for(unsigned i=0; i < v.size(); ++i)
      v[i] = i*i;
   show("Contents of v: ", v);
   return 0;
}
void show(const char *msg, vector<int> vect) {
   cout << msg;
   for(unsigned i=0; i < vect.size(); ++i)
      cout << vect[i] << " ";
   cout << "\n";
}

Result

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Related Tutorials

• Use pop_back() to remove one element from vector.
• Add elements to the end of vector using push_back member function.
• Compute the average of the values in vector using array subscripting operator.
• Exchange the contents of vector 1 and vector 3.
• Insert element to vector at the end