func_code_string: #include <bits/stdc++.h>   using namespace std;   const int inf = 1 << 30;   const long long linf = 1LL << 62;   const int mod = 1e9 + 7;   const int MAX = 510000;   const int V = 100005;   struct UnionFind {     vector<long long> p;     vector<long long> rank;     vector<long long> cnt;     UnionFind(long long n) {       rank.resize(n, 0);       p.resize(n, 0);       cnt.resize(n, 1);       for (long long i = 0; i < (n); i++) {         p[i] = i;         rank[i] = 0;         cnt[i] = 1;       }     }     long long find(long long x) {       if (x != p[x]) p[x] = find(p[x]);       return p[x];     }     bool same(long long x, long long y) { return find(x) == find(y); }     void unite(long long x, long long y) {       x = find(x);       y = find(y);       if (x == y) return;       if (rank[x] > rank[y]) {         p[y] = x;         cnt[x] += cnt[y];       } else {         p[x] = y;         cnt[y] += cnt[x];         if (rank[x] == rank[y]) rank[y]++;       }     }     long long getcnt(long long x) { return cnt[find(x)]; }   };   int main() {     long long q;     cin >> q;     while (q--) {       long long n;       cin >> n;       UnionFind uf(n);       for (long long i = 0; i < (n); i++) {         long long a;         cin >> a;         a--;         uf.unite(i, a);       }       for (long long i = 0; i < (n); i++) cout << uf.getcnt(i) <<    ;       cout << endl;     }   }   