Submission #447154

#	Time	Username	Problem	Language	Result	Execution time	Memory
447154		MOUF_MAHMALAT	Pastiri (COI20_pastiri)	C++14	Compilation error	0 ms	0 KiB

pastiri

Task PastiriTask Pastiri#include<bits/stdc++.h>
#define all(s) s.begin(),s.end()
using namespace std;
typedef int ll;
typedef pair<ll,ll>pll;
ll n,x,y,k,d[500009],a[500009],h[500009],c;
pll op[500009];
vector<vector<ll> >v;
queue<ll>q;
vector<ll>ans;
bool b[500009];
bool cmp(const ll&xo,const ll&yo)
{
    return h[xo]>h[yo];
}
struct node
{
    ll f,s,t;
};
queue<node>dq;
int main()
{
    scanf("%d%d",&n,&k);
    v.resize(n+1);
    for(ll i=1; i<n; i++)
    {
        scanf("%d%d",&x,&y);
        v[x].push_back(y);
        v[y].push_back(x);
    }
    for(ll i=1; i<=n; i++)
        d[i]=h[i]=1e9,op[i]= {1e9,1e9};
    h[1]=1;
    q.push(1);
    while(!q.empty())
    {
        x=q.front();
        q.pop();
        for(auto z:v[x])
            if(h[z]>h[x]+1)
            {
                h[z]=h[x]+1;
                q.push(z);
            }
    }
    for(ll i=1; i<=k; i++)
        scanf("%d",&a[i]),d[a[i]]=0,q.push(a[i]);
    while(!q.empty())
    {
        x=q.front();
        q.pop();
        for(auto z:v[x])
        {
            if(d[z]<=d[x]+1)
                continue;
            d[z]=d[x]+1;
            q.push(z);
        }
    }
    dq.push({1,0,1});
    while(!dq.empty())
    {
        x=dq.front().f;
        ll p=dq.front().s;
        ll id=dq.front().t;
        dq.pop();
        if(d[x]==0)
            op[x]= {h[id],id};
        for(auto z:v[x])
        {
            if(z==p)
                continue;
            if(d[x]==d[z]+1)
                dq.push({z,x,id});
            else
                dq.push({z,x,z});
        }
    }
    sort(a+1,a+k+1,cmp);
    for(ll i=1; i<=k; i++)
    {
        if(b[a[i]])
            continue;
        ans.push_back(op[a[i]].second);
        dq.push({op[a[i]].second,h[a[i]]-op[a[i]].first,0});
        while(!dq.empty())
        {
            x=dq.front().f;
            c=dq.front().s;
            ll p=dq.front().t;
            dq.pop();
            b[x]=1;
            if(c==0)
                continue;
            for(auto z:v[x])
                if(z!=p)
                    dq.push({z,c-1,x});
        }
    }
    cout<<ans.size()<<endl;
    for(auto z:ans)
        cout<<z<<" ";
    return 0;
}

Compilation message (stderr)

pastiri.cpp:1:25: error: stray '#' in program
    1 | Task PastiriTask Pastiri#include<bits/stdc++.h>
      |                         ^
pastiri.cpp:1:1: error: 'Task' does not name a type
    1 | Task PastiriTask Pastiri#include<bits/stdc++.h>
      | ^~~~
pastiri.cpp:5:9: error: 'pair' does not name a type
    5 | typedef pair<ll,ll>pll;
      |         ^~~~
pastiri.cpp:7:1: error: 'pll' does not name a type; did you mean 'll'?
    7 | pll op[500009];
      | ^~~
      | ll
pastiri.cpp:8:1: error: 'vector' does not name a type
    8 | vector<vector<ll> >v;
      | ^~~~~~
pastiri.cpp:9:1: error: 'queue' does not name a type
    9 | queue<ll>q;
      | ^~~~~
pastiri.cpp:10:1: error: 'vector' does not name a type
   10 | vector<ll>ans;
      | ^~~~~~
pastiri.cpp:20:1: error: 'queue' does not name a type
   20 | queue<node>dq;
      | ^~~~~
pastiri.cpp: In function 'int main()':
pastiri.cpp:23:5: error: 'scanf' was not declared in this scope
   23 |     scanf("%d%d",&n,&k);
      |     ^~~~~
pastiri.cpp:24:5: error: 'v' was not declared in this scope
   24 |     v.resize(n+1);
      |     ^
pastiri.cpp:32:23: error: 'op' was not declared in this scope
   32 |         d[i]=h[i]=1e9,op[i]= {1e9,1e9};
      |                       ^~
pastiri.cpp:34:5: error: 'q' was not declared in this scope
   34 |     q.push(1);
      |     ^
pastiri.cpp:60:5: error: 'dq' was not declared in this scope; did you mean 'd'?
   60 |     dq.push({1,0,1});
      |     ^~
      |     d
pastiri.cpp:68:13: error: 'op' was not declared in this scope; did you mean 'p'?
   68 |             op[x]= {h[id],id};
      |             ^~
      |             p
pastiri.cpp:79:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   79 |     sort(a+1,a+k+1,cmp);
      |     ^~~~
      |     short
pastiri.cpp:84:9: error: 'ans' was not declared in this scope
   84 |         ans.push_back(op[a[i]].second);
      |         ^~~
pastiri.cpp:84:23: error: 'op' was not declared in this scope
   84 |         ans.push_back(op[a[i]].second);
      |                       ^~
pastiri.cpp:100:5: error: 'cout' was not declared in this scope
  100 |     cout<<ans.size()<<endl;
      |     ^~~~
pastiri.cpp:100:11: error: 'ans' was not declared in this scope
  100 |     cout<<ans.size()<<endl;
      |           ^~~
pastiri.cpp:100:23: error: 'endl' was not declared in this scope
  100 |     cout<<ans.size()<<endl;
      |                       ^~~~