Help me in solving FARAWAY problem

My issue

Can someone please help me with this code to rectify it.

My code

#include <bits/stdc++.h>
using namespace std;

int main() {
    int t;
    cin >> t;
    while (t--) {
        int n, m;
        cin >> n >> m;
        vector<int> arr(n);
        for (int i = 0; i < n; i++) {
            cin >> arr[i];
        }
        vector<int> brr(n);
        for (int i = 0; i < n; i++) {
            if (arr[i] <= m / 2) {
                brr[i] = m;
            } else {
                brr[i] = 1;
            }
        }
        int a = 0;
        for (int i = 0; i < n; i++) {
            a += abs(arr[i] - brr[i]);
        }
        cout << a << endl;
    }
}

Problem Link: Far Away Practice Coding Problem