제출 #905078

#제출 시각아이디문제언어결과실행 시간메모리
905078a_l_i_r_e_z_a경주 (Race) (IOI11_race)C++17
컴파일 에러
0 ms0 KiB
// In the name of God #include <bits/stdc++.h> using namespace std; typedef long long ll; typedef long double ld; typedef pair<int, int> pii; typedef pair<ll, ll> pll; #define pb push_back #define S second #define F first #define mp make_pair #define smax(x, y) (x) = max((x), (y)) #define smin(x, y) (x) = min((x), (y)) #define all(x) (x).begin(), (x).end() #define len(x) ((int)(x).size()) const int maxn = 2e5 + 5, maxk = 1e6 + 5; const int inf = 1e9 + 7; ll n, k, ans = inf; vector<pll> adj[maxn]; map<ll, ll> mn[maxn]; void dfs(int v = 0, int h = 0, ll d = 0, int p = -1){ mn[v].insert(mp(d, h)); for(auto [u, w]: adj[v]){ if(u == p) continue; dfs(u, h + 1, d + w, v); if(mn[u].size() > mn[v].size()) swap(mn[u], mn[v]); for(auto w: mn[u]){ ll x = k + 2 * d - w.F; auto it = mn[v].find(x); if(it != mn[v].end()) smin(ans, w.S + (*it).S - 2 * h); } for(auto w: mn[u]){ auto it = mn[v].find(w.F); if(it != mn[v].end()) smin((*it).S, w.S); else mn[v].insert(w); } } } int best_path(int N, int K, int H[][2], int L[]){ n = N, k = K; fill(mn, mn + maxk, inf); for(int i = 0; i < n - 1; i++){ int u = H[i][0], v = H[i][1], w = L[i]; adj[u].pb(mp(v, w)); adj[v].pb(mp(u, w)); } dfs(); return (ans >= inf ? -1 : ans); } // int32_t main() // { // ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); // cin >> n >> k; // for(int i = 0; i < n - 1; i++){ // int u, v, w; cin >> u >> v >> w; // adj[u].pb(mp(v, w)); // adj[v].pb(mp(u, w)); // } // dfs(); // cout << (ans >= inf ? -1 : ans) << '\n'; // return 0; // }

컴파일 시 표준 에러 (stderr) 메시지

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 race.cpp:3:
/usr/include/c++/10/bits/stl_algobase.h: In instantiation of 'typename __gnu_cxx::__enable_if<std::__is_scalar<_Tp>::__value, void>::__type std::__fill_a1(_ForwardIterator, _ForwardIterator, const _Tp&) [with _ForwardIterator = std::map<long long int, long long int>*; _Tp = int; typename __gnu_cxx::__enable_if<std::__is_scalar<_Tp>::__value, void>::__type = void]':
/usr/include/c++/10/bits/stl_algobase.h:914:21:   required from 'void std::__fill_a(_FIte, _FIte, const _Tp&) [with _FIte = std::map<long long int, long long int>*; _Tp = int]'
/usr/include/c++/10/bits/stl_algobase.h:944:20:   required from 'void std::fill(_ForwardIterator, _ForwardIterator, const _Tp&) [with _ForwardIterator = std::map<long long int, long long int>*; _Tp = int]'
race.cpp:47:28:   required from here
/usr/include/c++/10/bits/stl_algobase.h:873:11: error: no match for 'operator=' (operand types are 'std::map<long long int, long long int>' and 'const int')
  873 |  *__first = __tmp;
      |  ~~~~~~~~~^~~~~~~
In file included from /usr/include/c++/10/map:61,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:81,
                 from race.cpp:3:
/usr/include/c++/10/bits/stl_map.h:319:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>& std::map<_Key, _Tp, _Compare, _Alloc>::operator=(const std::map<_Key, _Tp, _Compare, _Alloc>&) [with _Key = long long int; _Tp = long long int; _Compare = std::less<long long int>; _Alloc = std::allocator<std::pair<const long long int, long long int> >]'
  319 |       operator=(const map&) = default;
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:319:17: note:   no known conversion for argument 1 from 'const int' to 'const std::map<long long int, long long int>&'
  319 |       operator=(const map&) = default;
      |                 ^~~~~~~~~~
/usr/include/c++/10/bits/stl_map.h:323:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>& std::map<_Key, _Tp, _Compare, _Alloc>::operator=(std::map<_Key, _Tp, _Compare, _Alloc>&&) [with _Key = long long int; _Tp = long long int; _Compare = std::less<long long int>; _Alloc = std::allocator<std::pair<const long long int, long long int> >]'
  323 |       operator=(map&&) = default;
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:323:17: note:   no known conversion for argument 1 from 'const int' to 'std::map<long long int, long long int>&&'
  323 |       operator=(map&&) = default;
      |                 ^~~~~
/usr/include/c++/10/bits/stl_map.h:337:7: note: candidate: 'std::map<_Key, _Tp, _Compare, _Alloc>& std::map<_Key, _Tp, _Compare, _Alloc>::operator=(std::initializer_list<std::pair<const _Key, _Tp> >) [with _Key = long long int; _Tp = long long int; _Compare = std::less<long long int>; _Alloc = std::allocator<std::pair<const long long int, long long int> >]'
  337 |       operator=(initializer_list<value_type> __l)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_map.h:337:46: note:   no known conversion for argument 1 from 'const int' to 'std::initializer_list<std::pair<const long long int, long long int> >'
  337 |       operator=(initializer_list<value_type> __l)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~