How to append element at end of vector in C++?

In this C++ tutorial, you shall learn how to append an element to the end of vector using vector::push_back() function, with example programs.

Append Element at end of Vector

To append an element to the end of vector in C++, we can use vector::push_back() method. Call push_back() method on the vector, pass the element as argument. The method appends the element at the end of the vector.

The syntax of the statement to append an element e at the end of the vector v is

v.push_back(e);

C++ Program

In the following program, we take a string vector in fruits, and append an element "mango" at the end of the vector fruits.

main.cpp

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

int main() {
   vector<string> fruits{ "apple", "banana", "cherry" };
   fruits.push_back("mango");

   for(auto& element: fruits) {
      cout << element << endl;
   }
}

Output

apple
banana
cherry
mango

Conclusion

In this C++ Tutorial, we learned how to append an element at the end of a vector, using push_back() method.