제출 #843852

#제출 시각아이디문제언어결과실행 시간메모리
843852nononoClosing Time (IOI23_closing)C++17
컴파일 에러
0 ms0 KiB
#include "closing.h" #include <bits/stdc++.h> using namespace std; const int mxN = 200000; vector<vector<int>> adj(mxN); long long d[2][mxN]; void dfs(int u, int par, int type) { for(auto [v, w] : adj[u]) { if(v == par) continue ; d[type][v] = d[type][u] + w; dfs(v, u); } } int sub1(int N, long long K) { vector<long long> a; for(int i = 0; i < N; i ++) { a.push_back(d[0][i]); a.push_back(d[1][i]); } sort(a.begin(), a.end()); long long sum = 0; int ans = 0; for(long long x : a) { if(sum + x > K) break ; sum += x; ans += 1; } return ans; } int max_score(int N, int X, int Y, long long K, vector<int> U, vector<int> V, vector<int> W) { for(int i = 0; i < N - 1; i ++) { adj[U[i]].push_back({V[i], W[i]}); adj[V[i]].push_back({U[i], W[i]}); } dfs(X, X, 0); dfs(Y, Y, 1); if(d[0][Y] > 2 * K) return sub1(N, K); } // int main() { // int N, X, Y; // long long K; // cin >> N >> X >> Y >> K; // vector<int> U(N), V(N), W(N); // for(int i = 0; i < N - 1; i ++) { // cin >> U[i] >> V[i] >> W[i]; // } // cout << max_score(N, X, Y, K, U, V, W) << "\n"; // return 0; // }

컴파일 시 표준 에러 (stderr) 메시지

closing.cpp: In function 'void dfs(int, int, int)':
closing.cpp:11:14: error: cannot decompose non-array non-class type 'int'
   11 |     for(auto [v, w] : adj[u]) {
      |              ^~~~~~
closing.cpp: In function 'int max_score(int, int, int, long long int, std::vector<int>, std::vector<int>, std::vector<int>)':
closing.cpp:44:41: error: no matching function for call to 'std::vector<int>::push_back(<brace-enclosed initializer list>)'
   44 |         adj[U[i]].push_back({V[i], W[i]});
      |                                         ^
In file included from /usr/include/c++/10/vector:67,
                 from closing.h:1,
                 from closing.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1187:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int]'
 1187 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1187:35: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const int&'}
 1187 |       push_back(const value_type& __x)
      |                 ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:1203:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int]'
 1203 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1203:30: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::vector<int>::value_type&&' {aka 'int&&'}
 1203 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~
closing.cpp:45:41: error: no matching function for call to 'std::vector<int>::push_back(<brace-enclosed initializer list>)'
   45 |         adj[V[i]].push_back({U[i], W[i]});
      |                                         ^
In file included from /usr/include/c++/10/vector:67,
                 from closing.h:1,
                 from closing.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1187:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int]'
 1187 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1187:35: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const int&'}
 1187 |       push_back(const value_type& __x)
      |                 ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:1203:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int]'
 1203 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1203:30: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::vector<int>::value_type&&' {aka 'int&&'}
 1203 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~
closing.cpp:52:1: warning: control reaches end of non-void function [-Wreturn-type]
   52 | }
      | ^