結果
問題 | No.2294 Union Path Query (Easy) |
ユーザー | Kude |
提出日時 | 2023-05-05 23:20:17 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 199 ms / 4,000 ms |
コード長 | 4,658 bytes |
コンパイル時間 | 2,388 ms |
コンパイル使用メモリ | 232,028 KB |
実行使用メモリ | 29,056 KB |
最終ジャッジ日時 | 2024-05-02 18:33:59 |
合計ジャッジ時間 | 14,155 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 199 ms
28,928 KB |
testcase_04 | AC | 148 ms
18,048 KB |
testcase_05 | AC | 138 ms
16,128 KB |
testcase_06 | AC | 192 ms
28,928 KB |
testcase_07 | AC | 196 ms
29,056 KB |
testcase_08 | AC | 167 ms
29,056 KB |
testcase_09 | AC | 171 ms
28,928 KB |
testcase_10 | AC | 187 ms
28,928 KB |
testcase_11 | AC | 191 ms
29,056 KB |
testcase_12 | AC | 189 ms
29,056 KB |
testcase_13 | AC | 176 ms
29,056 KB |
testcase_14 | AC | 145 ms
28,928 KB |
testcase_15 | AC | 181 ms
28,928 KB |
testcase_16 | AC | 120 ms
29,056 KB |
testcase_17 | AC | 148 ms
29,056 KB |
testcase_18 | AC | 144 ms
29,056 KB |
testcase_19 | AC | 136 ms
29,056 KB |
testcase_20 | AC | 133 ms
29,056 KB |
testcase_21 | AC | 134 ms
28,928 KB |
testcase_22 | AC | 130 ms
29,056 KB |
testcase_23 | AC | 137 ms
28,928 KB |
testcase_24 | AC | 136 ms
29,056 KB |
testcase_25 | AC | 2 ms
5,376 KB |
testcase_26 | AC | 2 ms
5,376 KB |
testcase_27 | AC | 2 ms
5,376 KB |
testcase_28 | AC | 78 ms
5,376 KB |
testcase_29 | AC | 91 ms
5,760 KB |
testcase_30 | AC | 91 ms
7,040 KB |
testcase_31 | AC | 93 ms
8,448 KB |
testcase_32 | AC | 98 ms
9,728 KB |
testcase_33 | AC | 109 ms
10,880 KB |
testcase_34 | AC | 117 ms
12,160 KB |
testcase_35 | AC | 121 ms
13,568 KB |
testcase_36 | AC | 125 ms
14,720 KB |
testcase_37 | AC | 122 ms
16,128 KB |
testcase_38 | AC | 127 ms
17,408 KB |
testcase_39 | AC | 137 ms
18,560 KB |
testcase_40 | AC | 140 ms
19,840 KB |
testcase_41 | AC | 151 ms
21,120 KB |
testcase_42 | AC | 149 ms
22,400 KB |
testcase_43 | AC | 155 ms
23,808 KB |
testcase_44 | AC | 153 ms
25,216 KB |
testcase_45 | AC | 157 ms
26,496 KB |
testcase_46 | AC | 169 ms
27,776 KB |
testcase_47 | AC | 169 ms
28,928 KB |
testcase_48 | AC | 139 ms
29,056 KB |
ソースコード
#include<bits/stdc++.h> namespace { #pragma GCC diagnostic ignored "-Wunused-function" #include<atcoder/all> #pragma GCC diagnostic warning "-Wunused-function" using namespace std; using namespace atcoder; #define rep(i,n) for(int i = 0; i < (int)(n); i++) #define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--) #define all(x) begin(x), end(x) #define rall(x) rbegin(x), rend(x) template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; } template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; } using ll = long long; using P = pair<int,int>; using VI = vector<int>; using VVI = vector<VI>; using VL = vector<ll>; using VVL = vector<VL>; // S : group template <class S, S (*op)(S, S), S (*e)(), S (*inv)(S)> struct weighted_union_find { public: weighted_union_find() : _n(0) {} explicit weighted_union_find(int n) : _n(n), parent_or_size(n, -1), weight(n, e()) {} int merge(int a, int b, S w) { // W(a->b) = Wa^-1 Wb = w assert(0 <= a && a < _n); assert(0 <= b && b < _n); int x = leader(a), y = leader(b); assert(x != y); if (-parent_or_size[x] < -parent_or_size[y]) { std::swap(x, y); std::swap(a, b); w = inv(w); } // Wa^-1 Wy Wb = w // Wy = Wa w Wb^-1 weight[y] = op(op(weight[a], w), inv(weight[b])); parent_or_size[x] += parent_or_size[y]; parent_or_size[y] = x; return x; } S diff(int a, int b) { // W(a->b) = Wa^-1 Wb int x = leader(a), y = leader(b); assert(x == y); return op(inv(weight[a]), weight[b]); } bool same(int a, int b) { assert(0 <= a && a < _n); assert(0 <= b && b < _n); return leader(a) == leader(b); } int leader(int a) { assert(0 <= a && a < _n); int pre = -1; while (parent_or_size[a] >= 0) { int na = parent_or_size[a]; parent_or_size[a] = pre; pre = a; a = na; } S w = e(); while (pre != -1) { w = op(w, weight[pre]); weight[pre] = w; int npre = parent_or_size[pre]; parent_or_size[pre] = a; pre = npre; } return a; } int size(int a) { assert(0 <= a && a < _n); return -parent_or_size[leader(a)]; } std::vector<std::vector<int>> groups() { std::vector<int> leader_buf(_n), group_size(_n); for (int i = 0; i < _n; i++) { leader_buf[i] = leader(i); group_size[leader_buf[i]]++; } std::vector<std::vector<int>> result(_n); for (int i = 0; i < _n; i++) { result[i].reserve(group_size[i]); } for (int i = 0; i < _n; i++) { result[leader_buf[i]].push_back(i); } result.erase( std::remove_if(result.begin(), result.end(), [&](const std::vector<int>& v) { return v.empty(); }), result.end()); return result; } private: int _n; // root node: -1 * component size // otherwise: parent std::vector<int> parent_or_size; std::vector<S> weight; }; int op(int x, int y) { return x ^ y; } int e() { return 0; } int inv(int x) { return x; } using mint = modint998244353; } int main() { ios::sync_with_stdio(false); cin.tie(0); int n, x, q; cin >> n >> x >> q; struct S { mint sm; int cnt[30]{}; }; vector<S> d(n); weighted_union_find<int, op, e, inv> uf(n); vector<mint> pow2(30); rep(i, 30) pow2[i] = mint(2).pow(i); rep(_, q) { int type; cin >> type; if (type == 1) { int v, w; cin >> v >> w; // cout << "merge" << v << ' ' << x << endl; int lv = uf.leader(v), lx = uf.leader(x); int szv = uf.size(lv), szx = uf.size(lx); int l = uf.merge(v, x, w); S nd; nd.sm += d[lv].sm + d[lx].sm; int diff = uf.diff(lv, lx); rep(k, 30) { if (diff >> k & 1) nd.sm += pow2[k] * (ll(szv - d[lv].cnt[k]) * (szx - d[lx].cnt[k]) + ll(d[lv].cnt[k]) * d[lx].cnt[k]); else nd.sm += pow2[k] * (ll(szv - d[lv].cnt[k]) * d[lx].cnt[k] + ll(d[lv].cnt[k]) * (szx - d[lx].cnt[k])); } rep(_, 2) { int diff = uf.diff(lv, l); rep(k, 30) { if (diff >> k & 1) nd.cnt[k] += szv - d[lv].cnt[k]; else nd.cnt[k] += d[lv].cnt[k]; } swap(lv, lx); swap(szv, szx); } d[l] = nd; } else if (type == 2) { int u, v; cin >> u >> v; int res = !uf.same(u, v) ? -1 : uf.diff(u, v); cout << res << '\n'; if (res != -1) x = (x + res) % n; } else if (type == 3) { int v; cin >> v; cout << d[uf.leader(v)].sm.val() << '\n'; } else { int value; cin >> value; x = (x + value) % n; } } }