What are vectors in C++ STL?
Vectors in C++ STL are dynamic arrays that can resize themselves automatically when elements are added or removed.
How do I declare a vector in C++?
You can declare a vector using the syntax: std::vector<type> vectorName;
For example, std::vector<int> numbers;
.
What are some common operations I can perform on vectors?
Common operations include adding elements with push_back()
, accessing elements with at()
, and removing elements with pop_back()
.
Can you explain how to iterate over a vector?
You can iterate over a vector using a for loop or a range-based for loop. For example: for (int num : numbers) { /* process num */ }
.
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