func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     string s;     cin >> n >> s;     int a1[n], a2[n];     for (int i = 0; i < n; i++) a1[i] = s[i] -  0 ;     for (int i = n; i < 2 * n; i++) a2[i - n] = s[i] -  0 ;     for (int i = 0; i < n; i++) {       int s1(i), s2(i);       for (int j = i + 1; j < n; j++) {         if (a1[j] < a1[s1]) s1 = j;         if (a2[j] < a2[s2]) s2 = j;       }       swap(a1[i], a1[s1]);       swap(a2[i], a2[s2]);     }     int l(0), m(0);     for (int i = 0; i < n; i++)       if (a1[i] < a2[i])         l += 1;       else if (a1[i] > a2[i])         m += 1;       else if (a1[i] == a2[i]) {         cout <<  NO  << endl;         return 0;       }     if ((l == n) || (m == n))       cout <<  YES  << endl;     else       cout <<  NO  << endl;     return 0;   }   