https://www.codewars.com/kata/reviews/5db0c65918d8df0001818183/groups/5dc8b4ab2d55c30001fe5a96
This solution sometimes fails at the "tiny" random tests. A corresponding fixed test should be added.

Fixed

Fixed

The actual tests doesn't seed the RNG with current time so the test cases are actually deterministic.

using namespace std; is still required in sample tests.

Thanks!

Thanks for the feedback, this is my first Kata and I must admit that I don't quite know how this testing stuff really works ^^

Assert::That(getMinBalls(J), Equals(getMinBallsAuthor(J)));

Inputs are vulnerable to user functions
Should calculate expected result before sending to user functions

auto expected = getMinBallsAuthor(J);
Assert::That(getMinBalls(J), Equals(expected));

main.cpp:53:9: error: use of undeclared identifier 'queue'
        queue<int> q({s});
        ^
main.cpp:53:18: error: expected '(' for function-style cast or type construction
        queue<int> q({s});
              ~~~^
main.cpp:53:20: error: use of undeclared identifier 'q'
        queue<int> q({s});
                   ^
main.cpp:55:16: error: use of undeclared identifier 'q'
        while(!q.empty()){
               ^
main.cpp:56:21: error: use of undeclared identifier 'q'
            int u = q.front(); q.pop();
                    ^
main.cpp:56:32: error: use of undeclared identifier 'q'
            int u = q.front(); q.pop();
                               ^
main.cpp:61:21: error: use of undeclared identifier 'q'
                    q.push(e.to);
                    ^
7 errors generated.

Dont relay on includes by user code
This should be also put in the test part

#include<vector>
#include<queue>
using namespace std;