When will size become double

#1

when we define push_back operation we double the array when size becomes equal to max size so suppose we started with 2 and if we insert 4element (during insertion or should before insertion size should become 8(max size)) but in the last example when the faculty is finding capacity using custom defined file it shows size equal to 4 only

#2

Hello @great in this rhe size of the vector in the begining was 2 and then when you push more elements first it will become 4 in size adn when you will push 5 th element in it then it will become 8 in size.
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#3

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