Good Code.

This solution is not true in all the cases.
For example ("150 * y") the right solution is ("y * 150"),
but your code will return ("y * 105")

100% right: 125 is not an ore number.
Should raise an issue IMHO

I'm so happy I found this comment, as that was the one I kept getting as well. Thank you!

Oper Function is very fun to me.

It is very interesting Kata!! I usually don't care copy by value, copy by ref etc... But in this kata I realized that using copy by ref is very useful!!!
Thanks~

In basic test, there is an wrong number "125". It should be false!!

How about using set?? It is more faster than using sort, unique, erase.

easy to read and so similiar with me. Very Good

OMG I found the description m>=n or n<=m... I edited code and could pass all the test

Expected: equal to [[M: 9991 B: 1427 C: 1110]]
Actual: []

I don't know what is the problem... In my Visual Studio i can pass the result but in this kata compiler shows me [] .... what is wrong??

Thanks a lot. I can solve it easily for your tip!!

Thanks a lot. I will try on it by C-Style!!

I can correctly solve it by C-Style string char* Thank you~

The C++ version seems terrible, you have to work with C-style strings rather than std::string. Whitespace doesn't always show up in assertion messages, so you should print the result to console yourself and try selecting the string. If there's trailing whitespace at the end, you should see it.