func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int i, j, t;     int n;     int a[100005];     int b[100005];     cin >> n;     for (i = 0; i < n; i++) {       cin >> a[i];       b[i] = a[i];     }     sort(a, a + n);     int cnt = 0;     for (i = 0; i < n; i++) {       if (a[i] != b[i]) cnt++;     }     if (cnt == 0 || cnt == 2)       printf( YES n );     else       printf( NO n );     return 0;   }   