Difference between resize and reserve

#1

Instead of using reserve in the beginning to increase the size of the vector, why can’t I just use resize instead?

#2

hello @tayalaks2001
The main difference between vector resize() and vector reserve() is that resize() is used to change the size of vector where reserve() doesn’t. reserve() is only used to store at least the number of the specified elements without having to reallocate memory. But in resize() if the number is smaller than the current number then it resizes the memory and deletes the excess space over it.

#3

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