結果
問題 |
No.3272 Separate Contractions
|
ユーザー |
![]() |
提出日時 | 2025-09-12 23:56:45 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,722 bytes |
コンパイル時間 | 4,906 ms |
コンパイル使用メモリ | 267,884 KB |
実行使用メモリ | 40,376 KB |
最終ジャッジ日時 | 2025-09-12 23:57:03 |
合計ジャッジ時間 | 15,671 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | WA * 3 |
other | WA * 43 |
ソースコード
#define ATCODER #include <bit> #include <cstdint> #include <iostream> #include <algorithm> #include <vector> #include <string> #include <queue> #include <cassert> #include <unordered_map> #include <unordered_set> #include <queue> #include <math.h> #include <climits> #include <set> #include <map> #include <list> #include <iterator> #include <bitset> #include <chrono> #include <type_traits> using namespace std; using ll = long long; #define FOR(i, a, b) for(ll i=(a); i<(b);i++) #define REP(i, n) for(ll i=0; i<(n);i++) #define ROF(i, a, b) for(ll i=(b-1); i>=(a);i--) #define PER(i, n) for(ll i=n-1; i>=0;i--) #define VL vector<ll> #define VVL vector<vector<ll>> #define VP vector< pair<ll,ll> > #define VVP vector<vector<pair<ll,ll>>> #define all(i) begin(i),end(i) #define SORT(i) sort(all(i)) #define EXISTBIT(x,i) (((x>>i) & 1) != 0) #define MP(a,b) make_pair(a,b) #ifdef ATCODER #include <atcoder/all> using namespace atcoder; using mint = modint1000000007; using mint2 = modint998244353; #endif template<typename T = ll> vector<T> read(size_t n) { vector<T> ts(n); for (size_t i = 0; i < n; i++) cin >> ts[i]; return ts; } template<typename TV, const ll N> void read_tuple_impl(TV&) {} template<typename TV, const ll N, typename Head, typename... Tail> void read_tuple_impl(TV& ts) { get<N>(ts).emplace_back(*(istream_iterator<Head>(cin))); read_tuple_impl<TV, N + 1, Tail...>(ts); } template<typename... Ts> decltype(auto) read_tuple(size_t n) { tuple<vector<Ts>...> ts; for (size_t i = 0; i < n; i++) read_tuple_impl<decltype(ts), 0, Ts...>(ts); return ts; } template<typename T> T det2(array<T, 4> ar) { return ar[0] * ar[3] - ar[1] * ar[2]; } template<typename T> T det3(array<T, 9> ar) { return ar[0] * ar[4] * ar[8] + ar[1] * ar[5] * ar[6] + ar[2] * ar[3] * ar[7] - ar[0] * ar[5] * ar[7] - ar[1] * ar[3] * ar[8] - ar[2] * ar[4] * ar[6]; } template<typename T> bool chmax(T& tar, T src) { return tar < src ? tar = src, true : false; } template<typename T> bool chmin(T& tar, T src) { return tar > src ? tar = src, true : false; } template<typename T> void inc(vector<T>& ar) { for (auto& v : ar) v++; } template<typename T> void dec(vector<T>& ar) { for (auto& v : ar) v--; } template<typename T> vector<pair<T, int>> id_sort(vector<T>& a) { vector<T, int> res(a.size()); for (int i = 0; i < a.size(); i++)res[i] = MP(a[i], i); SORT(res); return res; } using val = pair<ll, ll>; using func = ll; val op(val a, val b) { return MP(a.first + b.first, a.second + b.second); } val e() { return MP(0LL, 0LL); } val mp(func f, val a) { return MP(f * a.second, a.second); } func comp(func f, func g) { if (g == -1)return f; else return g; } func id() { return -1; } val mp2(func f, val a) { if (f == -1) { return e(); } return MP(a.first + f * a.second, a.second); } func comp2(func f, func g) { if (f == -1) { return g; } if (g == -1) { return -1; } return f + g; } func id2() { return 0; } // Rook ll dxr[4] = { 1,0,-1,0 }; ll dyr[4] = { 0,1,0,-1 }; // Bishop ll dxb[4] = { -1,-1,1,1 }; ll dyb[4] = { -1,1,-1,1 }; // qween ll dxq[8] = { 0,-1,-1,-1,0,1,1,1 }; ll dyq[8] = { -1,-1,0,1,1,1,0,-1 }; void solve() { // 直径の例の図を考えればよさそう // とはいえWAに戻ろう ll n; cin >> n; VVP g(n); REP(i, n - 1) { ll u, v; cin >> u >> v; u--; v--; g[u].emplace_back(v, i); g[v].emplace_back(u, i); } auto dfs = [&](auto self, ll now, ll parent)-> pair<ll, ll> { pair<ll, ll> res; res.first = 0; res.second = now; for (auto& [v, i] : g[now]) { if (v == parent) continue; auto r = self(self, v, now); r.first++; chmax(res, r); } return res; }; auto [d0, v0] = dfs(dfs, 0, -1); auto [d1, v1] = dfs(dfs, v0, -1); VL dd(n); VL ans(n - 1); VL ans2(n - 1); auto dfs2 = [&](auto self, ll now, ll goal, ll dist, ll parent)-> pair<ll, bool> { pair<ll, bool> res; chmax(dd[now], dist); res.first = 1; res.second = now == goal; for (auto& [v, i] : g[now]) { if (v == parent) continue; auto r = self(self, v, goal, dist + 1, now); if ((dist + 1) * 2 > d1) res.first += r.first; res.second |= r.second; if (!r.second) { ans[i] = r.first; chmax(ans2[i], dist); } else if (dist * 2 < d1) { ans[i] = r.first; chmax(ans2[i], dist); } } return res; }; dfs2(dfs2, v0, v1, 0, -1); dfs2(dfs2, v1, v0, 0, -1); ll sum = 0; REP(i, n)sum += dd[i]; REP(i, n - 1) { cout << sum - ans[i] - ans2[i] << "\n"; } return; } int main() { ll t = 1; // cin >> t; while (t--) { solve(); } return 0; }