func_code_string: #include <bits/stdc++.h>   using namespace std;   vector<int> x[200];   int y[200], n, i, j, k, a, b, c, s, A, B;   int main() {     scanf( %d , &n);     n *= 2;     for (i = 1; i <= n; i++) scanf( %d , &k), x[k].push_back(i);     for (i = 10; i <= 99; i++)       if (x[i].size() == 1) {         if (a > b)           y[x[i][0]] = 2, b++;         else           y[x[i][0]] = 1, a++;       }     s = a * b;     A = a;     B = b;     for (i = 10; i <= 99; i++)       if (x[i].size() > 1) {         s += a + b;         c++;         for (j = 0; j < x[i].size(); j++) {           if (A > B)             y[x[i][j]] = 2, B++;           else             y[x[i][j]] = 1, A++;         }       }     s += c * c;     printf( %d n , s);     for (i = 1; i <= n; i++) printf( %d  , y[i]);   }   