func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAXN = 2000;   int cubeta[MAXN + 2];   int color;   int arr[MAXN + 2];   void mapea(int n) {     set<int> nums;     for (int i = 1; i <= n; i++) nums.insert(arr[i]);     map<int, int> val;     int cnt = 1;     set<int>::iterator it = nums.begin();     while (it != nums.end()) {       val[*it] = cnt;       cnt++;       it++;     }     for (int i = 1; i <= n; i++) arr[i] = val[arr[i]];   }   int busca(int l, int n) {     int r = n;     while (r > l && cubeta[arr[r]] != color) {       cubeta[arr[r]] = color;       r--;     }     return r + 1;   }   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     int n;     cin >> n;     for (int i = 1; i <= n; i++) cin >> arr[i];     mapea(n);     int resp = n;     for (int l = 0; l <= n; l++) {       color++;       bool continuar = true;       for (int i = 1; i <= l; i++) {         if (cubeta[arr[i]] == color) continuar = false;         cubeta[arr[i]] = color;       }       if (!continuar) break;       int r = busca(l, n);       resp = min(resp, r - l - 1);     }     cout << resp <<   n ;     return 0;   }   