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11 lines
559 B
Plaintext
11 lines
559 B
Plaintext
// Vectors are sequence containers representing arrays that can change in size.
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// Library to include
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#include <vector>
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vector<int> a; // Declare an empty vector, a.
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a.push_back(1); // Appends/Adds an element whose value is 1 to vector a.
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std::cout << a.at(0) << std::endl; // Accessing index 0 of vector a.
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a.size(); // Returns the size of the vector
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a.at(0) = 420; // Changing the value at index 0 to 420.
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