How Can I Concatenate Two std::vectors in C ?

Concatenating Two std::Vectors

When working with vectors in C , there may be instances where you need to combine or concatenate two vectors. The purpose of this question is to address the issue of concatenating two std::vectors and provide a solution.

Solution:

The solution to concatenate two std::vectors is to use the insert() member function along with the appropriate iterators. The syntax for insert() is:

void insert(iterator position, const_iterator first, const_iterator last);

In order to concatenate two vectors, you need to utilize the following steps:

vector1.insert(vector1.end(), vector2.begin(), vector2.end());

• vector1.end(): This iterator points to the end of vector1.
• vector2.begin(): This iterator points to the beginning of vector2.
• vector2.end(): This iterator represents the end of vector2, but excludes the last element.

By using the insert() function in this manner, you append all elements from vector2 to the end of vector1, effectively concatenating the two vectors.

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