Vectors vs. Arrays: Fun Time!! - Casady-ComSci-Seminar/Seminar-Notes GitHub Wiki

Vectors (Not the orange fella from Despicable Me): Used in Random Numbers Assignment

• Vectors hold as many things as you want. They grow dynamically with what you add to them.
• Sad Part: They take up a lot of your memory 😢
• Vectors are a template class so it is necessary to use "#include "
• Vectors are automatically deallocated.
• Vectors can be returned from a function.
• Vectors can be copied or assigned directly.
• Vectors can get the size using a built in function.

Example(initialization):

   std::vector<int> vector;
   vector.push_back(6); //pushes it onto the end
   cout<<vector[0]<<endl; //gets the first thing
   vector.pop_back(); //pops the thing on the end off

Arrays (Not as cool as vectors): Used in Using Arrays Assignment

• Arrays only hold a finite value that is declared during initialization.
• Arrays take up a very small amount of space in your memory because they do not grow dynamically like vectors. However, this does add restrictions to how you use the array.
• Arrays are built in to C++ so there is no need to include them, this is unlike vectors.
• Arrays need to be deallocated explicitly.
• Arrays are passed into functions as pointers.
• Arrays cannot be returned unless dynamically allocated from a function.
• Arrays cannot be copied or assigned directly.
• No size function. Have to do it yourself.

Example Code:

   int array[5] = {0}; // makes the array full of zero
   int array[5] = {2,3,5,7,11}; // array with numbers in it (mind💥)

Citations(this is proper Heath Style Citation):
Image Address: https://cdn.educba.com/academy/wp-content/uploads/2018/09/C-Vector-vs-Array.jpg

Helped From: https://www.geeksforgeeks.org/advantages-of-vector-over-array-in-c/