func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t, n, k, i, j, res[201], max = 0, diff;     cin >> t;     for (i = 0; i < t; i++) {       cin >> n >> k;       int x[k];       for (j = 0; j < k; j++) {         cin >> x[j];         if (j == 0) {           max = x[j];         }         if ((j > 0) && (j < k)) {           diff = (x[j] - x[j - 1]) / 2 + 1;         }         if (diff > max) {           max = diff;         }         if (j == (k - 1)) {           if ((n - x[j] + 1) > max) {             max = n - x[j] + 1;           }         }       }       res[i] = max;       diff = 0;     }     for (i = 0; i < t; i++) {       cout << res[i] <<   n ;     }     return 0;   }   