/* -*- coding: utf-8 -*- * * 2427.cc: No.2427 Tree Distance Two - yukicoder */ #include #include #include using namespace std; /* constant */ const int MAX_N = 300000; /* typedef */ typedef vector vi; /* global variables */ vi nbrs[MAX_N]; int ps[MAX_N], cis[MAX_N], ss1[MAX_N], ss2[MAX_N]; int pss1[MAX_N], pss2[MAX_N]; /* subroutines */ /* main */ int main() { int n; scanf("%d", &n); for (int i = 1; i < n; i++) { int u, v; scanf("%d%d", &u, &v); u--, v--; nbrs[u].push_back(v); nbrs[v].push_back(u); } ps[0] = -1; for (int u = 0; u >= 0;) { vi &nbru = nbrs[u]; int up = ps[u]; if (cis[u] < nbru.size()) { int v = nbru[cis[u]++]; if (v != up) { ps[v] = u; u = v; } } else { if (up >= 0) { ss1[up]++; ss2[up] += ss1[u]; } u = up; } } fill(cis, cis + n, 0); for (int u = 0; u >= 0;) { vi &nbru = nbrs[u]; int up = ps[u]; if (cis[u] < nbru.size()) { int v = nbru[cis[u]++]; if (v != up) { pss1[v] = 1; pss2[v] = ss1[u] - 1 + pss1[u]; u = v; } } else { u = up; } } for (int u = 0; u < n; u++) printf("%d\n", ss2[u] + pss2[u]); return 0; }