How do I split an int into its digits?

Question

How can I split an int in c++ to its single numbers? For example, I\'d like to split 23 to 2 and 3.

Answer 1

the classic trick is to use modulo 10: x%10 gives you the first digit(ie the units digit). For others, you'll need to divide first(as shown by many other posts already)

Here's a little function to get all the digits into a vector(which is what you seem to want to do):

using namespace std;
vector digits(int x){
    vector returnValue;
    while(x>=10){
        returnValue.push_back(x%10);//take digit
        x=x/10; //or x/=10 if you like brevity
    }
    //don't forget the last digit!
    returnValue.push_back(x);
    return returnValue;
}