func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, a;   vector<int> v1, v2;   int main() {     cin >> n;     for (int i = 0; i < n; i++) {       cin >> a;       v1.push_back(a);       v2.push_back(a);     }     sort(v2.begin(), v2.end());     a = 0;     for (int i = 0; i < n; i++) {       a += v1[i] != v2[i];     }     (a < 3) ? cout <<  YES  << endl : cout <<  NO  << endl;     return 0;   }   