제출 #468157

#제출 시각아이디문제언어결과실행 시간메모리
468157SirCovidThe19thDreaming (IOI13_dreaming)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #include "dreaming.h" using namespace std; #define pii pair<int, int> #define f first #define s second const int mx = 1e5 + 5, inf = 1e9; vector<pair<int, int>> adj[mx]; pii in[mx]; bool vis[mx]; void comb(pii &p, int x){ if (x > p.f) p.s = p.f, p.f = x; else if (x > p.s) p.s = x; } void dfs1(int i, int p){ vis[i] = 1; for (auto [x, w] : adj[i]) if (x != p){ dfs1(x, i); comb(in[i], in[x].f + w); } } void dfs2(int i, int p, int pout, int &mnD){ mnD = min(mnD, max(pout, in[i].f)); lg = max(lg, in[i].f + pout); for (auto [x, w] : adj[i]) if (x != p){ int sib = (in[i].f == in[x].f + w) ? in[i].s : in[i].f; int out = max(sib, pout) + w; dfs2(x, i, out, mnD); } } int travelTime(int n, int m, int l, int A[], int B[], int T[]){ for (int i = 0; i < m; i++){ adj[A[i]].push_back({B[i], T[i]}); adj[B[i]].push_back({A[i], T[i]}); } int w[3] = {-l, -l, -l}; for (int i = 0; i < n; i++) if (!vis[i]){ int mnD = 1e9; dfs1(i, 0); dfs2(i, 0, 0, mnD); if (mnD > w[0]) w[2] = w[1], w[1] = w[0], w[0] = mnD; else if (mnD > w[1]) w[2] = w[1], w[1] = mnD; else if (mnD > w[2]) w[2] = mnD; } if (n == 1) return 0; if (n == 2) return m ? T[0] : l; return max({w[0] + w[1] + l, w[1] + w[2] + 2 * l, lg}); }

컴파일 시 표준 에러 (stderr) 메시지

dreaming.cpp: In function 'void dfs2(int, int, int, int&)':
dreaming.cpp:25:41: error: 'lg' was not declared in this scope; did you mean 'log'?
   25 |     mnD = min(mnD, max(pout, in[i].f)); lg = max(lg, in[i].f + pout);
      |                                         ^~
      |                                         log
dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:46:52: error: 'lg' was not declared in this scope; did you mean 'l'?
   46 |  return max({w[0] + w[1] + l, w[1] + w[2] + 2 * l, lg});
      |                                                    ^~
      |                                                    l
dreaming.cpp:46:55: error: no matching function for call to 'max(<brace-enclosed initializer list>)'
   46 |  return max({w[0] + w[1] + l, w[1] + w[2] + 2 * l, lg});
      |                                                       ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from dreaming.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
dreaming.cpp:46:55: note:   candidate expects 2 arguments, 1 provided
   46 |  return max({w[0] + w[1] + l, w[1] + w[2] + 2 * l, lg});
      |                                                       ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from dreaming.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
dreaming.cpp:46:55: note:   candidate expects 3 arguments, 1 provided
   46 |  return max({w[0] + w[1] + l, w[1] + w[2] + 2 * l, lg});
      |                                                       ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from dreaming.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3480 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note:   template argument deduction/substitution failed:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3486 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note:   template argument deduction/substitution failed: