func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 2e5 + 20;   inline int read() {     int ans = 0;     char last =    , ch = getchar();     while (ch< 0  | ch>  9 ) last = ch, ch = getchar();     while (ch >=  0  && ch <=  9 ) ans = ans * 10 + ch -  0 , ch = getchar();     if (last ==  - ) ans = -ans;     return ans;   }   int n, k;   vector<int> save[maxn];   int a[maxn], color[maxn], cnt[maxn], ls[maxn];   void solve() {     n = read(), k = read();     for (int i = 0; i <= n; i++) save[i].clear(), color[i] = 0;     for (int i = 0; i <= n - 1; i++) a[i] = read(), save[a[i]].push_back(i);     int kd = 0;     for (int i = 0; i <= n; i++) {       for (int j = 0; j <= min(k, (int)(save[i].size())) - 1; j++) {         color[save[i][j]] = kd + 1;         ls[kd + 1] = save[i][j];         kd++;         kd %= k;       }     }     for (int i = 1; i <= kd; i++) color[ls[i]] = 0;     for (int i = 0; i <= n - 1; i++) cout << color[i] <<    ;     cout <<   n ;   }   int main() {     int _t;     _t = read();     while (_t--) solve();     return 0;   }   