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I have an array, which contains some elements. I hope to add some elements to the end of this array. Do you think that can I do for this? I don't want vector. how to resize and add the new element follow the last element?

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    Why don't you want to use vector? That's what it's there for. Commented May 9, 2017 at 3:25
  • If you only want to add elements, you can also use deque, stack, queue, list Commented May 9, 2017 at 3:29
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    Questions like "I want to do <some really common thing> but I don't want to use <the standard library facility that exists to solve exactly that problem>" are generally not very useful to future visitors and usually don't get answered. If you need a wheel and there is a high-quality steel wheel available to you for free, don't chisel a half-assed wheel out of stone instead. You don't do yourself any favors. Commented May 9, 2017 at 3:35

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You cannot do that.

Because of this, it does not make sense not to use vectors.

You have to use a dynamic array either from standard library like a vector or through making it your self by using memory management facilities like new operator.

You can learn more about vectors here.
You can learn more about new here

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you can use upper limit of your input for array size .Then you used an extra variable for control . But i suggested to you for use vactor for get better result.

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