Submission #938903

#	Time	Username	Problem	Language	Result	Execution time	Memory
938903		vjudge1	Bosses (BOI16_bosses)	C++17	Compilation error	0 ms	0 KiB

bosses

#include<bits/stdc++.h>
using namespace std;

const int INF = 1e9;
const int MAXN = 5e3;

int N;
vector<int> children[MAXN + 5];
bool visit[MAXN + 5];

int dfs(int cur, int depth) {
  visit[cur] = true;
  int ans = depth;
  for (auto child: children[cur]) {
    if (visit[child]) continue;
    ans += dfs(child, depth + 1);
  }
  return ans;
}

int main() {
  ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
  cin >> N;
  for (int i = 0; i < N; i++) {
    int sz; cin >> sz;
    while (sz--) {
      int u; cin >> u; u--;
      children[i].push_back(u);
    }
  }
  int ans = INF;
  for (int i = 0; i < N; i++) {
    memset(visit, false, sizeof visit);
    ans = min(ans, dfs(i, 1));
  }
  cout << ans << endl;
  return 0;
}

Compilation message (stderr)

bosses.cpp: In function 'int dfs(int, int)':
bosses.cpp:12:3: error: reference to 'visit' is ambiguous
   12 |   visit[cur] = true;
      |   ^~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
                 from bosses.cpp:1:
/usr/include/c++/10/variant:1700:5: note: candidates are: 'template<class _Visitor, class ... _Variants> constexpr decltype(auto) std::visit(_Visitor&&, _Variants&& ...)'
 1700 |     visit(_Visitor&& __visitor, _Variants&&... __variants)
      |     ^~~~~
bosses.cpp:9:6: note:                 'bool visit [5005]'
    9 | bool visit[MAXN + 5];
      |      ^~~~~
bosses.cpp:15:9: error: reference to 'visit' is ambiguous
   15 |     if (visit[child]) continue;
      |         ^~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
                 from bosses.cpp:1:
/usr/include/c++/10/variant:1700:5: note: candidates are: 'template<class _Visitor, class ... _Variants> constexpr decltype(auto) std::visit(_Visitor&&, _Variants&& ...)'
 1700 |     visit(_Visitor&& __visitor, _Variants&&... __variants)
      |     ^~~~~
bosses.cpp:9:6: note:                 'bool visit [5005]'
    9 | bool visit[MAXN + 5];
      |      ^~~~~
bosses.cpp: In function 'int main()':
bosses.cpp:33:12: error: reference to 'visit' is ambiguous
   33 |     memset(visit, false, sizeof visit);
      |            ^~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
                 from bosses.cpp:1:
/usr/include/c++/10/variant:1700:5: note: candidates are: 'template<class _Visitor, class ... _Variants> constexpr decltype(auto) std::visit(_Visitor&&, _Variants&& ...)'
 1700 |     visit(_Visitor&& __visitor, _Variants&&... __variants)
      |     ^~~~~
bosses.cpp:9:6: note:                 'bool visit [5005]'
    9 | bool visit[MAXN + 5];
      |      ^~~~~
bosses.cpp:33:33: error: reference to 'visit' is ambiguous
   33 |     memset(visit, false, sizeof visit);
      |                                 ^~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
                 from bosses.cpp:1:
/usr/include/c++/10/variant:1700:5: note: candidates are: 'template<class _Visitor, class ... _Variants> constexpr decltype(auto) std::visit(_Visitor&&, _Variants&& ...)'
 1700 |     visit(_Visitor&& __visitor, _Variants&&... __variants)
      |     ^~~~~
bosses.cpp:9:6: note:                 'bool visit [5005]'
    9 | bool visit[MAXN + 5];
      |      ^~~~~