func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAXN = 1005;   template <typename T>   void chkmax(T &x, T y) {     x = max(x, y);   }   template <typename T>   void chkmin(T &x, T y) {     x = min(x, y);   }   template <typename T>   void read(T &x) {     x = 0;     int f = 1;     char c = getchar();     for (; !isdigit(c); c = getchar())       if (c ==  - ) f = -f;     for (; isdigit(c); c = getchar()) x = x * 10 + c -  0 ;     x *= f;   }   int n, a[MAXN];   int main() {     read(n);     vector<pair<int, int>> ans;     for (int i = 1; i <= n; i++) read(a[i]);     for (int i = 1; i <= n; i++) {       vector<int> p;       for (int j = i + 1; j <= n; j++)         if (a[j] < a[i]) p.push_back(j);       sort(p.begin(), p.end(), [&](int x, int y) {         if (a[x] != a[y])           return a[x] > a[y];         else           return x > y;       });       for (auto x : p) ans.emplace_back(i, x);     }     cout << ans.size() << endl;     for (auto x : ans) printf( %d %d n , x.first, x.second);     return 0;   }   