Can someone summarize the content in 100 words?

I wrote the code for large integers, but when creating this kata, I realized that it had execution time limit, and it can't handle larger test cases like "71717", which returns "1038660". That's why the return type is string instead of interger.

Why such a complex solution if the sample space are just 32 bit integers?

Wait, how? I tried the code yet, but it returned "65536" for 34567, and the test case said it was true bruh :(

The code is fixed. Thanks for your response!

It's good that this errored because this means the tests were using the user's submission solution as the reference solution, which is dangerous

Errors from the random tests:

In file included from main.cpp:7:
./tests.cpp:37:23: error: use of undeclared identifier 'multiply'; did you mean '_multiply'?
        string temp = multiply(a, mul);
                      ^~~~~~~~
                      _multiply
./tests.cpp:21:8: note: '_multiply' declared here
string _multiply(string x, int mul) {
       ^
./tests.cpp:39:18: error: use of undeclared identifier 'add'; did you mean '_add'?
        result = add(result, temp);
                 ^~~
                 _add
./tests.cpp:8:8: note: '_add' declared here
string _add(string x, string y) {

yo first 2 kyu kata completed !

it's not supposed to be easy

maybe I'm not ready for 2kyu kata; haft a day trying to fix my code but it still not work. Good luck to those who want to try this. :/

read the assertion message, not the line of code:

Invalid result for s = "", part1 = "ac", part2 = "ab"
Expected: false
Actual: true

why the test do_test("", "ac", "ab", false) return false :) isn't the part1 contain "" in its?

are the random tests even generating proper molecules?. If I print the first 10 chars I get things like "H)4305C)59".

This is a duplicate: https://www.codewars.com/kata/52f831fa9d332c6591000511