Submission #1117614

#	Time	Username	Problem	Language	Result	Execution time	Memory
1117614		vjudge1	Paprike (COI18_paprike)	C++17	Compilation error	0 ms	0 KiB

paprike

#include<bits/stdc++.h>
using namespace std;
vector<int>g[100001];
bool visit[100001];
long long val[100001];
int ans=0;
long long k,sum;
void dfs(int node)
{
    sum+=val[node];
    if(sum<=k)
    {
        visit[node]=1;
        for(int go:g[node])
        if(!visit[go])
            dfs(go);
    }
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin>>n>>k;
    for(int i=1;i<=n;i++)
        cin>>val[i];
    for(int i=0;i<n-1;i++)
    {
        int a,b;
        cin>>a>>b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    for(int i=1;i<=n;i++)
    {
        if(visit[i]==0)
        {
            ans++;
            dfs(i);
            sum=0;
        }
    }
    cout<<ans-1;
    return 0;
}

Compilation message (stderr)

paprike.cpp: In function 'void dfs(int)':
paprike.cpp:13:9: error: reference to 'visit' is ambiguous
   13 |         visit[node]=1;
      |         ^~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
                 from paprike.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)
      |     ^~~~~
paprike.cpp:4:6: note:                 'bool visit [100001]'
    4 | bool visit[100001];
      |      ^~~~~
paprike.cpp:15:13: error: reference to 'visit' is ambiguous
   15 |         if(!visit[go])
      |             ^~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
                 from paprike.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)
      |     ^~~~~
paprike.cpp:4:6: note:                 'bool visit [100001]'
    4 | bool visit[100001];
      |      ^~~~~
paprike.cpp: In function 'int main()':
paprike.cpp:37:12: error: reference to 'visit' is ambiguous
   37 |         if(visit[i]==0)
      |            ^~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:133,
                 from paprike.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)
      |     ^~~~~
paprike.cpp:4:6: note:                 'bool visit [100001]'
    4 | bool visit[100001];
      |      ^~~~~