why in (v.size) after 4 th element ,the size doubles?
Vector problem about expanding size
in the video lacture they have made a vector v by using v.push_back(no) ,now if i am doing v.size() that is giving output as 5 but if i am doing v.capacity() its giving output as 8 , they are saying because size of array doubles after 4 but i am not understanding why the size doubles after 4th element enters
my question is how the v.capacity() is 8 as output
basically initially capacity of vector was 4… but on adding 5th element, it directly doubles… there is no exact explanation for why it doubles…
U can read more about vector capacity over here https://www.google.com/amp/s/www.geeksforgeeks.org/vector-capacity-function-in-c-stl/amp/
why the capacity of vector was 4 initially ,is there any reason for that?
No specific reason…
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