C++

char zeroMoveNim(vector<int> p) {
    int xr = 0;
    for(auto n : p) xr ^= n + ((n&1)<<1) - 1;
    return xr ? 'W' : 'L';   
}

In the text of C++ program next error strings should be commented or deleted otherwise the program will abort

string n_temp;
getline(cin, n_temp);
int n = stoi(ltrim(rtrim(n_temp)));

Here is Zero-Move Nim problem solution in PYthon Java C++ and c programming - https://programs.programmingoneonone.com/2021/07/hackerrank-zero-move-nim-problem.html

Main function given in the code does not work properly. I shared the fixed C++ code below. Removed the part reading the p_count_temp, which does not exist in the input.

int main()
{
    ofstream fout(getenv("OUTPUT_PATH"));

    string g_temp;
    getline(cin, g_temp);

    int g = stoi(ltrim(rtrim(g_temp)));

    for (int g_itr = 0; g_itr < g; g_itr++) {
        
        string n_temp;
        getline(cin, n_temp);
        int n = stoi(ltrim(rtrim(n_temp)));

        string p_temp_temp;
        getline(cin, p_temp_temp);
        cout << p_temp_temp << endl;

        vector<string> p_temp = split(rtrim(p_temp_temp));

        vector<int> p;
        for (int i = 0; i < p_temp.size(); i++) {
            int p_item = stoi(p_temp[i]);
            p.push_back(p_item);
        }

        char result = zeroMoveNim(p);
        fout << result << "\n";
    }

    fout.close();

    return 0;
}

C#: line with "int n = ..." must be removed, this fixes the exception, i.e. extra read happened!

It looks like there is a bug in the system:

Unhandled Exception: System.FormatException: Input string was not in a correct format. at System.Number.ThrowOverflowOrFormatException (System.Boolean overflow, System.String overflowResourceKey) [0x0001a] in <254335e8c4aa42e3923a8ba0d5ce8650>:0 at System.Number.ParseInt32 (System.ReadOnlySpan1[T] value, System.Globalization.NumberStyles styles, System.Globalization.NumberFormatInfo info) [0x00016] in <254335e8c4aa42e3923a8ba0d5ce8650>:0 at System.Int32.Parse (System.String s, System.IFormatProvider provider) [0x00017] in <254335e8c4aa42e3923a8ba0d5ce8650>:0 at System.Convert.ToInt32 (System.String value) [0x0000b] in <254335e8c4aa42e3923a8ba0d5ce8650>:0 at Solution.Main (System.String[] args) [0x00033] in <38d1b93bc503403d93754bc7a44d3cc3>:0 [ERROR] FATAL UNHANDLED EXCEPTION: System.FormatException: Input string was not in a correct format. at System.Number.ThrowOverflowOrFormatException (System.Boolean overflow, System.String overflowResourceKey) [0x0001a] in <254335e8c4aa42e3923a8ba0d5ce8650>:0 at System.Number.ParseInt32 (System.ReadOnlySpan1[T] value, System.Globalization.NumberStyles styles, System.Globalization.NumberFormatInfo info) [0x00016] in <254335e8c4aa42e3923a8ba0d5ce8650>:0 at System.Int32.Parse (System.String s, System.IFormatProvider provider) [0x00017] in <254335e8c4aa42e3923a8ba0d5ce8650>:0 at System.Convert.ToInt32 (System.String value) [0x0000b] in <254335e8c4aa42e3923a8ba0d5ce8650>:0 at Solution.Main (System.String[] args) [0x00033] in <38d1b93bc503403d93754bc7a44d3cc3>:0 Input (stdin)

Download 2 2 1 2 2 2 2 Your Output (stdout) ~ no response on stdout ~ Expected Output

Download W L