func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int arr[n];     for (int i = 0; i <= n - 1; i++) cin >> arr[i];     vector<pair<int, int> > G[n];     int cnt = 0;     for (int i = 0; i <= n - 1; i++) {       for (int j = i + 1; j <= n - 1; j++) {         if (arr[i] > arr[j]) {           G[i].push_back(make_pair(arr[j], j));           cnt++;         }       }     }     cout << cnt <<   n ;     for (int i = 0; i <= n - 1; i++) {       sort(G[i].begin(), G[i].end());       int s = G[i].size();       for (int j = s - 1; j >= 0; j--) {         cout << i + 1 <<     << G[i][j].second + 1 <<   n ;       }     }     return 0;   }   