제출 #879091

#제출 시각아이디문제언어결과실행 시간메모리
879091serifefedartar공장들 (JOI14_factories)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #include "factories.h" using namespace std; #define fast ios::sync_with_stdio(0);cin.tie(0); #define s second #define f first typedef long long ll; const ll MOD = 1e9 + 9; const ll LOGN = 21; const ll MAXN = 5e5 + 100; vector<vector<pair<int,int>>> graph; int marked[MAXN], sz[MAXN], up[LOGN][MAXN], depth[MAXN]; int par[MAXN] ll depth_dist[MAXN], ans[MAXN]; int get_sz(int node, int parent) { sz[node] = 1; for (auto u : graph[node]) { if (u.f == parent || marked[u.f]) continue; sz[node] += get_sz(u.f, node); } return sz[node]; } int find_centro(int node, int parent, int n) { for (auto u : graph[node]) { if (u.f != parent && !marked[u.f] && sz[u.f] * 2 > sz[node]) return find_centro(u.f, node, n); } return node; } void decompose(int node, bool q) { int n = get_sz(node, node); int centro = find_centro(node, node, n); marked[centro] = true; if (q) par[centro] = -1; else par[centro] = node; for (auto u : graph[centro]) { if (u.f != parent && !marked[u.f]) decompose(u.f, false); } } void dfs(int node, int parent) { for (auto u : graph[node]) { if (u.f == parent) continue; depth[u.f] = depth[node] + 1; depth_dist[u.f] = depth_dist[node] + u.s; up[0][u.f] = node; for (int i = 1; i < LOGN; i++) up[i][u.f] = up[i-1][up[i-1][u.f]]; dfs(u.f, node); } } int find(int node, int k) { for (int i = 0; i < LOGN; i++) { if ((1<<i) & k) node = up[i][node]; } return node; } int lca(int a, int b) { if (depth[b] > depth[a]) swap(a, b); a = find(a, depth[a] - depth[b]); if (a == b) return a; for (int i = LOGN - 1; i >= 0; i--) { if (up[i][a] != up[i][b]) { a = up[i][a]; b = up[i][b]; } } return up[0][a]; } int dist(int a, int b) { return depth_dist[a] + depth_dist[b] - 2 * depth_dist[lca(a, b)]; } void Init(int N, vector<int> A, vector<int> B, vector<int> D) { graph = vector<vector<pair<int,int>>>(N+1, vector<pair<int,int>>()); for (int i = 0; i < N-1; i++) { graph[A[i]].push_back({B[i], D[i]}); graph[B[i]].push_back({A[i], D[i]}); } dfs(1, 1); decompose(1, true); for (int i = 0; i < MAXN; i++) ans[i] = 1e15; } void add(int node) { int now = node; while (now != -1) { ans[now] = min(ans[now], dist(now, node)); now = par[now]; } } void remove(int node) { while (node != -1) { ans[node] = 1e15; node = par[node]; } } ll qry(int node) { int now = node; ll res = 1e15; while (now != -1) { res = min(res, dist(now, node) + ans[now]); now = par[now]; } return res; } ll Query(int S, vector<int> X, int T, vector<int> Y) { for (auto u : X) add(u); ll mn = 1e16; for (auto u : Y) mn = min(mn, qry(u)); for (auto u : X) remove(u); return mn; }

컴파일 시 표준 에러 (stderr) 메시지

factories.cpp:16:1: error: expected initializer before 'll'
   16 | ll depth_dist[MAXN], ans[MAXN];
      | ^~
factories.cpp: In function 'void decompose(int, bool)':
factories.cpp:42:3: error: 'par' was not declared in this scope; did you mean '__pstl::execution::v1::par'?
   42 |   par[centro] = -1;
      |   ^~~
      |   __pstl::execution::v1::par
In file included from /usr/include/c++/10/pstl/glue_algorithm_defs.h:15,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from factories.cpp:1:
/usr/include/c++/10/pstl/execution_defs.h:111:27: note: '__pstl::execution::v1::par' declared here
  111 | constexpr parallel_policy par{};
      |                           ^~~
factories.cpp:44:3: error: 'par' was not declared in this scope; did you mean '__pstl::execution::v1::par'?
   44 |   par[centro] = node;
      |   ^~~
      |   __pstl::execution::v1::par
In file included from /usr/include/c++/10/pstl/glue_algorithm_defs.h:15,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from factories.cpp:1:
/usr/include/c++/10/pstl/execution_defs.h:111:27: note: '__pstl::execution::v1::par' declared here
  111 | constexpr parallel_policy par{};
      |                           ^~~
factories.cpp:47:14: error: 'parent' was not declared in this scope
   47 |   if (u.f != parent && !marked[u.f])
      |              ^~~~~~
factories.cpp: In function 'void dfs(int, int)':
factories.cpp:57:3: error: 'depth_dist' was not declared in this scope
   57 |   depth_dist[u.f] = depth_dist[node] + u.s;
      |   ^~~~~~~~~~
factories.cpp: In function 'int dist(int, int)':
factories.cpp:90:9: error: 'depth_dist' was not declared in this scope
   90 |  return depth_dist[a] + depth_dist[b] - 2 * depth_dist[lca(a, b)];
      |         ^~~~~~~~~~
factories.cpp: In function 'void Init(int, std::vector<int>, std::vector<int>, std::vector<int>)':
factories.cpp:103:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
  103 |   ans[i] = 1e15;
      |   ^~~
      |   abs
factories.cpp: In function 'void add(int)':
factories.cpp:109:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
  109 |   ans[now] = min(ans[now], dist(now, node));
      |   ^~~
      |   abs
factories.cpp:110:9: error: 'par' was not declared in this scope; did you mean '__pstl::execution::v1::par'?
  110 |   now = par[now];
      |         ^~~
      |         __pstl::execution::v1::par
In file included from /usr/include/c++/10/pstl/glue_algorithm_defs.h:15,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from factories.cpp:1:
/usr/include/c++/10/pstl/execution_defs.h:111:27: note: '__pstl::execution::v1::par' declared here
  111 | constexpr parallel_policy par{};
      |                           ^~~
factories.cpp: In function 'void remove(int)':
factories.cpp:116:3: error: 'ans' was not declared in this scope; did you mean 'abs'?
  116 |   ans[node] = 1e15;
      |   ^~~
      |   abs
factories.cpp:117:10: error: 'par' was not declared in this scope; did you mean '__pstl::execution::v1::par'?
  117 |   node = par[node];
      |          ^~~
      |          __pstl::execution::v1::par
In file included from /usr/include/c++/10/pstl/glue_algorithm_defs.h:15,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from factories.cpp:1:
/usr/include/c++/10/pstl/execution_defs.h:111:27: note: '__pstl::execution::v1::par' declared here
  111 | constexpr parallel_policy par{};
      |                           ^~~
factories.cpp: In function 'll qry(int)':
factories.cpp:125:36: error: 'ans' was not declared in this scope; did you mean 'abs'?
  125 |   res = min(res, dist(now, node) + ans[now]);
      |                                    ^~~
      |                                    abs
factories.cpp:126:9: error: 'par' was not declared in this scope; did you mean '__pstl::execution::v1::par'?
  126 |   now = par[now];
      |         ^~~
      |         __pstl::execution::v1::par
In file included from /usr/include/c++/10/pstl/glue_algorithm_defs.h:15,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from factories.cpp:1:
/usr/include/c++/10/pstl/execution_defs.h:111:27: note: '__pstl::execution::v1::par' declared here
  111 | constexpr parallel_policy par{};
      |                           ^~~