func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, hitung, arr[212];   void swap(int x, int y) {     for (int i = y; i > x; i--) {       int tmp = arr[i - 1];       arr[i - 1] = arr[i];       arr[i] = tmp;       hitung += 1;     }   }   int main() {     cin >> n;     for (int i = 1; i <= 2 * n; i++) {       cin >> arr[i];     }     int i = 1;     while (i <= 2 * n) {       if (arr[i] == arr[i + 1]) {       } else {         for (int j = i + 2; j <= 2 * n; j++) {           if (arr[i] == arr[j]) {             swap(i + 1, j);             break;           }         }       }       i += 2;     }     cout << hitung <<   n ;   }   