Move a random element from one vector to another vector

Asked Mar 18 '20 at 14:32

Active Mar 18 '20 at 14:35

Viewed 27 times

At the moment i know how to move an element from one vector to the other. The issue is i want to move the element randomly instead of choosing the element. Code is below.

auto it = find(deck.begin(), deck.end(), 3);
    if (it != deck.end()) {
        player1.push_back(*it);
        deck.erase(it);
    }

This moves an element from one vector to the other but i have to choose the element by typing it in as you can see from the number three. Does anyone have any idea on how to do this randomly.

edited Mar 18 '20 at 14:35

François Andrieux

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asked Mar 18 '20 at 14:32

coder

1

Look up how to get a random number in C++? – user253751 Mar 18 '20 at 14:34
What do you mean by "randomly"? What elements to you want to remove? – Yksisarvinen Mar 18 '20 at 14:34
Might be a dup: https://stackoverflow.com/questions/6942273/how-to-get-a-random-element-from-a-c-container – Eljay Mar 18 '20 at 14:34
Instead, consider shuffling the vector and always taking the last element. – François Andrieux Mar 18 '20 at 14:36
there is a deck vector which has numbers 1 to 10. I want to move one of them numbers to another vector without me specifying which number – coder Mar 18 '20 at 14:36
@FrançoisAndrieux Thank you i never thought of that, that might just work – coder Mar 18 '20 at 14:37
Take a look at this question : [How to shuffle a std::vector?](https://stackoverflow.com/questions/6926433/how-to-shuffle-a-stdvector). – François Andrieux Mar 18 '20 at 14:38
@FrançoisAndrieux Thanks this should work perfectly. – coder Mar 18 '20 at 14:39

Move a random element from one vector to another vector

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