제출 #838991

#제출 시각아이디문제언어결과실행 시간메모리
838991VMaksimoski008Traffic (IOI10_traffic)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #define pb push_back #define eb emplace_back #define sz(x) (int)x.size() #define all(x) x.begin(), x.end() #define uniq(x) x.erase(unique(all(x)), x.end()) #define rall(x) x.rbegin(), x.rend() //#define int long long using namespace std; using ll = long long; using ull = unsigned long long; using ld = long double; using pii = pair<int, int>; using pll = pair<ll, ll>; const int mod = 1e9 + 7; const int LOG = 20; const int maxn = 1e5 + 5; const double eps = 1e-9; void setIO() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); } vector<vector<int> > graph; vector<int> pop; vector<ll> sub; int ans = -1; ll currBest = 1e9; void getSub(int u, int p) { sub[u] += pop[u]; for(int &v : graph[u]) { if(v == p) continue; getSub(v, u); sub[u] += sub[v]; } } void dfs(int u, int p) { ll here = sub[0] - sub[u]; for(int &v : graph[u]) { if(v == p) continue; here = max(here, sub[v]); } if(here < currBest) { currBest = here; ans = u; } //cout << u << " " << here << '\n'; for(int &v : graph[u]) { if(v == p) continue; dfs(v, u); } } int LocalCentre(int n, int p[], int s[], int d[]) { pop = p; graph.resize(n); sub.resize(n, 0); for(int i=0; i<n-1; i++) { graph[s[i]].push_back(d[i]); graph[d[i]].push_back(s[i]); } getSub(0, 0); dfs(0, 0); //cout << currBest << '\n'; return ans; } // int32_t main() { // setIO(); // int n; // cin >> n; // vector<int> p(n); // vector<int> s(n); // vector<int> d(n); // for(int &x : p) cin >> x; // for(int i=0; i<n-1; i++) { // cin >> s[i] >> d[i]; // } // cout << LocalCentre(n, p, s, d) << '\n'; // return 0; // }

컴파일 시 표준 에러 (stderr) 메시지

traffic.cpp: In function 'int LocalCentre(int, int*, int*, int*)':
traffic.cpp:68:11: error: no match for 'operator=' (operand types are 'std::vector<int>' and 'int*')
   68 |     pop = p;
      |           ^
In file included from /usr/include/c++/10/vector:72,
                 from /usr/include/c++/10/queue:61,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:86,
                 from traffic.cpp:1:
/usr/include/c++/10/bits/vector.tcc:198:5: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]'
  198 |     vector<_Tp, _Alloc>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/vector.tcc:199:42: note:   no known conversion for argument 1 from 'int*' to 'const std::vector<int>&'
  199 |     operator=(const vector<_Tp, _Alloc>& __x)
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/vector:67,
                 from /usr/include/c++/10/queue:61,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:86,
                 from traffic.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:709:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = int; _Alloc = std::allocator<int>]'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:709:26: note:   no known conversion for argument 1 from 'int*' to 'std::vector<int>&&'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |                 ~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:730:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = int; _Alloc = std::allocator<int>]'
  730 |       operator=(initializer_list<value_type> __l)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:730:46: note:   no known conversion for argument 1 from 'int*' to 'std::initializer_list<int>'
  730 |       operator=(initializer_list<value_type> __l)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~