func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     int t;     cin >> t;     while (t--) {       long long n, k;       cin >> n >> k;       int a[n];       int ma = INT_MIN;       for (int i = 0; i < n; i++) {         cin >> a[i];         if (a[i] > ma) ma = a[i];       }       int m2 = INT_MIN;       vector<int> v1, v2;       for (int i = 0; i < n; i++) {         a[i] = ma - a[i];         if (m2 < a[i]) m2 = a[i];         v1.push_back(a[i]);       }       for (int i = 0; i < n; i++) {         a[i] = m2 - a[i];       }       if (k % 2) {         for (int i = 0; i < v1.size(); i++) cout << v1[i] <<    ;         cout << endl;       } else {         for (int i = 0; i < n; i++) cout << a[i] <<    ;         cout << endl;       }     }   }   