How can I split integer inside an array?

Question

In C++, I have the following input: 12345

How can I achieve this output: 1 2 3 4 5 ?

Another example could be:

input: 123

output: 1 2 3

Read as a `std::string` and substract `'0'` from each position to get the digit numbers. — πάντα ῥεῖ, Jul 17 '16 at 16:33
`for(int i = 0; i < YourString.Size(); i++) ACharVector.push_back(YourString[i]);` — Khalil Khalaf, Jul 17 '16 at 16:39
@FirstStep Depends a bit on `AVector`'s type, if it's a `std::vector` the substraction should be done as mentioned in my comment. — πάντα ῥεῖ, Jul 17 '16 at 16:42
@PriteshJadhav As you may have noticed, your question isn't well achieved here, and it doesn't fit the intended format of good questions and answers that we want here. To learn basic stuff, it's probably better you read a book, or take on a tutorial. — πάντα ῥεῖ, Jul 17 '16 at 16:44
@πάνταῥεῖ right. Then AnIntVector.push_back(YourStrin[i] - '0') should work or maybe (int)YourString[i] as well — Khalil Khalaf, Jul 17 '16 at 16:44
@PriteshJadhav As it looks right now, any book would do well. — πάντα ῥεῖ, Jul 17 '16 at 17:00
@Pritesh - You might want to search the site for "C++ Book", or go directly to [The Definitive C++ Book Guide And List](http://stackoverflow.com/questions/388242/the-definitive-c-book-guide-and-list) — Bo Persson, Jul 17 '16 at 17:11
@PriteshJadhav You should notice, this isn't the way [how to ask good questions](http://stackoverflow.com/help/how-to-ask) here. — πάντα ῥεῖ, Jul 17 '16 at 17:19

DimChtz · Answer 1 · 2016-07-17T17:03:32.557

3

You can simply do this:

int num = 123;
std::vector<int> digits;

while( num > 0 ) {
    digits.push_back(num % 10);
    num /= 10;
}

edited Jul 17 '16 at 17:03

answered Jul 17 '16 at 16:38

DimChtz

@PriteshJadhav Using something like `push_back(digit)` instead of `cout << digit` is an enormous intellectual act, I absolutely agree. – πάντα ῥεῖ Jul 17 '16 at 16:59
_@DimChtz_ I actually hesitate to up- or downvote your answer. On the one hand I don't think it's a good custom to answer off-topic questions. On the other hand I want to hinder the OP deleting that question themselves, but letting it go fully processed. – πάντα ῥεῖ Jul 17 '16 at 17:22

1 Answers1