結果
問題 | No.900 aδδitivee |
ユーザー | kyort0n |
提出日時 | 2019-10-04 22:23:05 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,950 bytes |
コンパイル時間 | 1,639 ms |
コンパイル使用メモリ | 186,172 KB |
実行使用メモリ | 36,528 KB |
最終ジャッジ日時 | 2024-10-03 07:59:42 |
合計ジャッジ時間 | 6,269 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 | 3 ms
8,192 KB |
testcase_01 | AC | 2 ms
8,320 KB |
testcase_02 | AC | 2 ms
8,192 KB |
testcase_03 | AC | 3 ms
8,192 KB |
testcase_04 | AC | 3 ms
8,320 KB |
testcase_05 | AC | 3 ms
8,192 KB |
testcase_06 | AC | 3 ms
8,320 KB |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
ソースコード
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<ll, ll> l_l; typedef pair<int, int> i_i; template<class T> inline bool chmax(T &a, T b) { if(a < b) { a = b; return true; } return false; } template<class T> inline bool chmin(T &a, T b) { if(a > b) { a = b; return true; } return false; } #define EPS (1e-7) #define INF (1e9) #define PI (acos(-1)) //const ll mod = 1000000007; typedef vector<vector<ll>> Graph; template< typename G > struct DoublingLowestCommonAncestor { const int LOG; vector< int > dep; const G &g; vector< vector< int > > table; DoublingLowestCommonAncestor(const G &g) : g(g), dep(g.size()), LOG(32 - __builtin_clz(g.size())) { table.assign(LOG, vector< int >(g.size(), -1)); } void dfs(int idx, int par, int d) { table[0][idx] = par; dep[idx] = d; for(auto &to : g[idx]) { if(to != par) dfs(to, idx, d + 1); } } void build() { dfs(0, -1, 0); for(int k = 0; k + 1 < LOG; k++) { for(int i = 0; i < table[k].size(); i++) { if(table[k][i] == -1) table[k + 1][i] = -1; else table[k + 1][i] = table[k][table[k][i]]; } } } int query(int u, int v) { if(dep[u] > dep[v]) swap(u, v); for(int i = LOG - 1; i >= 0; i--) { if(((dep[v] - dep[u]) >> i) & 1) v = table[i][v]; } if(u == v) return u; for(int i = LOG - 1; i >= 0; i--) { if(table[i][u] != table[i][v]) { u = table[i][u]; v = table[i][v]; } } return table[0][u]; } int P(int u, int d) { int digit = 0; while(d > 0) { if(d & (1 << digit)) { u = table[digit][u]; d &= ~(1 << digit); } digit++; } return u; } }; vector<int> pathes[100500]; vector<int> children[100500]; ll cost[100500], nowcost[100500]; void DFS(int now, ll nowval) { nowval += nowcost[now]; cost[now] += nowval; nowcost[now] = 0; for(int &to : children[now]) DFS(to, nowval); } void DFS2(int now, ll nowval, ll nowsum) { cost[now] += nowsum; //cerr << "DFS" << now << " " << nowcost[now] << " " << cost[now] << endl; nowval += nowcost[now]; nowsum += nowval; nowcost[now] = 0; for(int &to : children[now]) { DFS2(to, nowval, nowsum); } } ll parent[100050]; void initialize(int now, int from) { for(auto to : pathes[now]) { if(to == from) continue; children[now].push_back(to); parent[to] = now; initialize(to, now); } } int ope, a, b; ll x; vector<l_l> query; const int B = 30; ll u[100050], v[100050], w[100050]; int main() { cin.tie(0); ios::sync_with_stdio(false); int N; cin >> N; parent[0] = -1; Graph G(N); for(int i = 0; i <= N - 2; i++) { cin >> u[i] >> v[i] >> w[i]; G[u[i]].push_back(v[i]); G[v[i]].push_back(u[i]); pathes[u[i]].push_back(v[i]); pathes[v[i]].push_back(u[i]); } initialize(0, -1); /* for(int i = 0; i < N; i++) { cerr << "---" << i << "---" << endl; for(auto v : children[i]) cerr << v << " "; cerr << endl; } */ for(int i = 0; i <= N - 2; i++) { if(parent[u[i]] == v[i]) swap(u[i], v[i]); nowcost[v[i]] += w[i]; } DFS(0, 0); DoublingLowestCommonAncestor<Graph> LCA(G); LCA.build(); ll Q; cin >> Q; int timer = 0; while(Q--) { timer++; if(timer == 1001) break; cin >> ope; if(ope == 1) { cin >> a >> x; query.emplace_back(a, x); nowcost[a] += x; } else { cin >> b; ll ans = cost[b]; for(l_l now : query) { if(LCA.query(now.first, b) == now.first) { ans += now.second * (LCA.dep[b] - LCA.dep[now.first]); } } cout << ans << "\n"; } if((int)query.size() % B == 0) { query.clear(); DFS2(0, 0, 0); } } return 0; }